I must have the WORST tournament luck

[MadNinja]

Yesterday I played in 2 cheap tournaments. I had an average stack of chips both times.

First tourney- Someone raises in front of me. I have A-Ks so I go all-in, figuring him on a lesser hand. He calls with A-7o. Feeling confident, figuring my odds are pretty good and glad that I called, flop comes:
7-A-7

turn comes.... 7

Are you serious? First of all, I'm shocked somebody called my All-in pre-flop with A-7, but a flop like that? WTF!!!!

Now if that wasn't bad enough:

2nd tourney (trying to make up for the first bad beat)
I call an all-in, once again, figuring my opponent on a weak hand and once again I was right.
I have A-A, he has K-8o. Another all-in call I can't understand. As I start counting his chips that I am about to accumulate, the flop comes:
10-8-8

I usually don't like to go all-in pre-flop but I thought in these instances my chances were pretty good. Am I a compete idiot or just unlucky??