Ones you've done and ones you've had done to you.

Most embarrassing one I've done: tried to blackmail someone into being my boyfriend when i was 10. unsuccessful.
Most embarrassing one I've had done to me: when i was 13 on a youth group residential camp, an 11-year-old kept sending his friend to knock on my room door and say 'Jono's in bed and he's waiting for you'. after this happened a number of times i went into his room to yell at him and he did a mock 'sexy' pose on the bed and said 'come here and we can make a hibernation nest'. i turned him down and he spent half an hour on the window ledge being melodramatic.