"Assumption of risk" ("Volenti non fit injuria") is defined as:
http://www.lectlaw.com/def/a083.htm"ASSUMPTION OF RISK - A defense raised in personal injury lawsuits. Asserts that the plaintiff knew that a particular activity was dangerous and thus bears all responsibility for any injury that resulted."
The derivative, "volenti non fit injuria" ("A volunteer cannot be injured.") states that anyone who willingly engages in a behavior or does an action voluntarily is not entitled to damages and is also used in torts law and acts as a full defense to the defendant who can prove it:
http://en.wikipedia.org/wiki/Volenti_non_fit_injuria"Volenti non fit injuria (Latin: "to a willing person, no injury is done" or "no injury is done to a person who consents") is a common law doctrine which means that if someone willingly places themselves in a position where harm might result, knowing that some degree of harm might result, they cannot then sue if harm does in fact happen. The 'volenti' only applies to the risk which a reasonable person would consider them as having assumed by their actions; thus a boxer consents to being hit, and to the injuries that might be expected from being hit, but is not a 'volenti' if (for example) his opponent should swing an iron bar at him, or punch him outside the usual terms of boxing. Volenti is also known as a "voluntary assumption of risk".
'Volenti' (from which, indirectly, the English word 'volunteer' is derived) is sometimes described as the plaintiff "consenting to run a risk". In this context, 'volenti' can be distinguished from legal consent in that the latter can prevent some torts arising in the first place (for example, consent to a medical procedure prevents the procedure
from being a trespass to the person, or consenting to a person visiting your land prevents them from being a trespasser).
..."The defence has two main elements:
1. The claimant was fully aware of all the risks involved, including both the nature and the extent of the risk; and
2. The claimant expressly (by his statement) or impliedly (by his actions) consented to waive all claims for damages. His knowledge of the risk is not sufficient: sciens non est volens ("knowing is not volunteering"). His consent must be free and voluntary, i.e. not brought about by duress. If the relationship between the claimant and defendant is such that there is doubt as to whether the consent was truly voluntary, such as the relationship between workers and employers, the courts are unlikely to find volenti."
So, as we can see, although "assumption of risk" appears to be strictly a torts concept (and collecting a debt is not a
tort, which is defined as "A negligent or intentional civil wrong not arising out of a contract or statute." ), the derivative "volenti non fit injuria" DOES appear to have applicability to debt collection lawsuit defenses since the JDB DOES assume the risk of non-recovery of the debt when they buy it, since the debt has already been declared a "loss" by the creditor (the creditor has written off the debt, assuming that it is uncollectible). The consumer, although they can theoretically be assumed to know that an OC can assign a debt--and all the rights pertaining to the contract--to a JDB, the very fact that the consumer can be considered to "consent" only under duress means that such consent to allow the JDB to "stand in the shoes" of the OC cannot be assumed.
One reason this defense does not seem to be one used much, if at all, in debt collection cases may well be found in the definition of "negligence" above:
http://www.lectlaw.com/def2/n010.htmIn general, a party who has caused an injury or loss to another in consequence of his negligence is responsible for all the consequences. An example of this may be found in the case of a person who drives a car during a dark night on the wrong side of the road and injures another.
The JDB's argument here would be that, by defaulting on the contract, the consumer debtor is guilty of negligence in their non-performance pre the terms of the contract. Hence, they are responsible for the consequences of such non-performance, namely they owe the money; the JDB, as assignee to the OC, inherit the right to demand payment in full. They would also no doubt raise the point raised in "Hamrick" that the consumer voluntarily damaged themselves by defaulting on the contract and/or, by failing to pay, consented to the continued collection in full by whomever holds title to the debt. In "Hamrick", the court stated:
...[T]he legal maxim "volenti non fit injuria" also applies. One is not legally injured if she consented to the act complained of or was willing that it should occur.
In other words, "volenti" works both ways.
The consumer, however, can answer to that problem in that they, although they did assume the risk of being found liable for the debt due to the contract default, they could not have known nor should have known that they risked being chased down by anyone, not just the OC or their immediate successor (to the same business). It's also reasonable to assume that this assumption of liability would apply ONLY to to dealings with the party who took the risk of lending to them to begin with: The OC!
Not a JDB: The JDB loaned no money and took none of the risks inherent in lending any. By buying defaulted debt, the JDB with full knowledge of what they were buying, an asset whose asset value had been declared by the original owner to be zero. Nothing. Zilch. A loss.
By extension, by buying the file and "inheriting" the business deal and the consumer debtor (the defaulting party), they took on a "customer" who, for all intents and purposes, is known to be a contractural non-performer who is likely to remain so. In plain English, the JDB vountarily bought a pig in a poke even though the "meows" of the "pig" so trapped inside were clearly audible...and the claws were poking through the fabric! In short, they knew what they were getting and bought it anyway.
The consumer also can use their lack of legal standing in the sale of the debt (they were not a party to the deal) as evidence that any agreement, express or implied, giving the JDB the right to collect the debt, in full or in part, from them as an agreement made under duress. An agreement made under duress would then insulate the consumer from the application of "volenti" and any payments would be purely voluntary and could not be coerced by anyone.