The War on IM Scammers

I've found a new activity that I like. I'm always getting IM spam for people wanting me to cash check or do a number of other fraudulent activities. I've taken to the habit of either wasting their time with pointless questions or getting right into the insults. They sometimes send insults back but most times they don't know English well enough to understand what I'm trying to do. Either way it's a great way to waste a few minutes with each of them.