Oh, that really sucks. I hate it when that happens.
Here's my recent one:
I get KK two times in a row so i decide the slow play the second a bit because there were way too many sitouts at my table. Only 4 ppl active including myself and a newly camed player with a 3000 stack. This was still 40/20 blinds. I had a bit over 2000. I was in first position so i check it, the guy with 3000 checks too, another one raises 360 and the 4th folds. Well heck for the slow play, if i get raised let's roll. I push all in. The guy with 3000 calls, the one with the raise things about it and finally calls. He shows QQ, the guy with 3000 stack shows AA, i had KK. Of course the com cards didn't brought any Q or K or A so the AA takes it.