What is the worse poker experience that you have ever been through?

Please give details and why it is the worse experience. Elaborate if you must, just make it real and on topic please.

Mine would have to be the time that I had lost 2k on one hand. I had 10 10 3 handed 5,10. I limped and this guy who had been constantly rasising pre-flop but it at 60. I call, flop. 8 10 8................................................. ...........
Of course I know I'm good, I check, he bet's I min, he shoves.......................


Now this is for my entire stack of 2k................................................ ........

How can you fold right...?

I call........... He flips 8,10............I have him dominated.............................


Turn.............................................. ..8............................................... .