LOL I use a fake Indian accent (that I do pretty well) just to add more fun.
ROFL!!!! I was at breakfast with some friends this morning when one of them got a call on his cellphone from ... you guessed it, IRS scammers. He was about to hang up when I asked him for his phone.
I introduced myself to the scammers as "Apu" and asked if they wanted an orange flavored slurpee. This went on for ab out five minutes until I started cursing them out sounding like Apu from the Simpsons, which had those sitting around us in the restaurant laughing....
 That was fun!
A surprising number of them get mad when they figure out you are scamming them back and say “God will punish you” to which I always reply “not any more than he punishes thieves and scammers”
There is a good site for some laffs - google “Ebola Monkey Man” to read of some hilarious adventures scamming the scammers