how to sue a collection agency for collecting past statue of limitations?

I know that some where there was a thread in here about a member who sues collection agencies for violating the fair debt collections act. I did a search, but couldn't find it.
My ex husband is getting calls, ( at my home), from a collection agency trying to collect on a Capital One Debt that is 15 years old! (before he even met me!) . I have spoken with them etc, to no avail and now I want revenge! Has anyone done this before and if so, how to I go about it? I know that I have to file in small claims, but are there certain steps I have to do? If i win how do I guarantee that they actually pay me? Anyone have any experience with this? Once I file I will post up dates on here.

Start with reading creditboards forums.

Basically:

Have you disputed/validated with this specific collections agency?

After they failed to validate, did you keep records of each and every FCRA violation (call logs, copies of letters, etc)?

If they failed to validate, and you have records of FCRA violations, congratulations! Sue the collections agency for $1k / violation.

Collecting your judgement is another topic entirely.

Posting it on his credit reports would be a FCRA violation, but not actionable unless it remains on his report after he disputes.
Posting it on his credit reports might be an actionable FDCPA violation, using unconscionable means to collect.

Collection beyond statute of limitations to file suit is NOT an FDCPA violation, but collecting beyond a statute of repose might be.
Only two states have statute of repose IIRC. I think Wisconsin is one of them.

Since it's out of statute, just send them a refusal to pay, and sue them if they do anything other than send him one letter describing what they're going to do about it.

EDIT: Just realized it's your ex husband. He can sue if they tell you (not his wife) about his debts, and you can sue if they keep calling you after you tell them to stop.

Paging CN47...