jokes you've made IRL that flopped

[otnemem]

In high school, we used to have a Halloween costume contest in the school's courtyard. My senior year, there were about 500 people in the courtyard watching. As they announce the entrant's name and costume, the person prances out in front of the school in their costume and everyone cheers (or yells indiscriminate disparaging comments, if you're my friend Jim).

Announcer: Next up - Rachel Klefer as a pig!
Jim (without looking): BECAUSE SHE IS ONE!!!!
*stunned silence*
Jim's friend Tommy (hushed): Um, Jim, she has Downs Syndrome.
Jim: KILL ME NOW!

It was really, really awkward.