Stand-up comic and Family Guy staff writer Deepak Sethi was performing at the LA Comedy Club in Vegas last month when he asked what he thought would be a fairly innocuous question: "Anyone from the military here?"

Stand-up comic Myles Weber was preparing to perform a set when a heckler started harassing the comedian ahead of him, who also happened to be his friend.

Heckling: Like talking, only louder and more disruptive. You do it when you really want to get your point across. Today at a fundraiser for California Senate candidate Barbara Boxer, Obama was heckled... by the good guys!

Are you at the exciting Future of Web Apps Summit? Oh, you have work to do instead? Well the founder of community site Metafilter is there, and he's heckling over IM: