The last sick bad beat I delivered was when I shoved J3o UTG after losing a big hand and I didn't even have 2BB left. The flop came AQ2, turn and river were 4 and 5, one of the callers had QQ and another one had A2. I had so few chips left that there were four callers in the pot, so I actually added a bit to my stack.
Of course, when you shove 88 against KK and the villain wins the pot, that's not a bad beat.
Games with an element of chance will always have these things happen, so we have to either learn to deal with it, or if we can't deal with then it's time to play something else.
Just remember the bad beats you delivered, or better yet write down a list of the sickest ones so that you don't feel like you're always getting the short end of the stick. I was in a Carbon freeroll a while back and delivered at least 6 huge bad beats, including hitting a 2-outer to make a better full house against a flopped full house, running straights, running flushes, etc. It probably helped that I was playing much looser than I normally do, but after having fought a cold deck for the longest time it was fun.