Let’s see…
I generally respond to the individual the first time, giving them the basic UL info and some links (including Snopes and one that goes thru basics of ‘how to identify UL & chain-mail’. That usually doesn’t work, but I’ve given them a fair chance. After that, I reply to ALL with the same info, usually accompanied by some (snide to scathing, depending on how often they do this) commentary.
I’ve only had one person try to use me as a fact-checker. I went along for a couple of times, but always just replied with links. The last time was when she had forwarded some garbage to a bunch of people and I replied to all. She sent me email apologizing and saying something like ‘I know, I should have checked with you first.’ I answered her very bluntly and said ‘No, you should have looked it up first. If you can’t take two minutes to websearch with the links I’ve sent you repeatedly, then don’t send it out at all - just delete it. If even that is beyond your abilities, at least stop sending them to me.’
Haven’t gotten anything from her since. Don’t know if she’s ticked & don’t care. Of course, she’s the same one that sent me an ACTUAL virus (Melissa, maybe?) having carefully changed the subject line and added a line asking “Can you tell me what this is?”. !!!
My boss does use me as a fact-checker; he knows I’ve been following ULs since long before the Web was around. And he gets away with it, being my boss and all.
I like the idea about listing personal experiences so over the top that it’s unbelievable - that method’s always worked for me to combat ‘martyr syndrome’. I’ll have to try that, if I ever have this problem again. I think word’s gotten round - I don’t see nearly as many of these as I used to. 
My two favorite stories:
Someone sent me a chainmail. The Snopes site listed it not only as a chainmail, but as having a followup virus hoax chainmail. (Yeah, that one, can’t remember the name.) I replied to sender with the appropriate Snopes link. Shortly afterward I received a plaintive email asking ‘So how do I get rid of the virus?’ :rolleyes:
I sent my dept coworkers a copy of the ‘Free Money Virus’; it was the first I’d seen of the ‘your appliances will be corrupted and your computer will throw itself out the window screaming’ satires and it just cracked me up. One of my coworkers carefully caught me alone, “just to make sure it was a joke”. Apparently was worried I’d sent her an actual virus!! :eek: