i performed the heimleich on myself once. i had just flown 2 straight 4 1/2 hour flights, neither of which food was served, on my way to olympia, wa. then it was another hour to olympia from seatac airport. when i arrived at my friend's house, they were eating fried chicken. they were all in the living room when i went into the kitchen and wolfed down some chicken. i choked on a bone, but could not yell for help, so no one knew i was chocking. i threw myself against the counter several times until the bone popped out of my mouth. it was pretty scary.