Need Help With A Prank

I'm getting revenge on a few office mates, but I need some help with the script. I've set up fake e-mail accounts with the names of the 4 "marks" and plan on creating a fake "conversation" between them (sent out to the whole company). Something that starts with a general request to the entire company like:

Mark 1:"Does anyone know any good physicians for STD's, specifically clamidia?"

Mark 2: "Sure, I had the same problem and Dr. _____ set me up. He gave me this great cream called ________."

Mark 3: "Yea. You know, that stuff works great for jock itch, too."

and so on...

I'd just like to get some new script ideas because I'm not the world's wittiest person but I think my idea is solid.

Thanks.