First, thanks for your answers and sorry for the english.
Shyguy, on the table we were about 8 people. After the initial bet we were 3. So I believe the initial bet wasn't that bad. The other man standing did a all in with jack queen. He was out of the game after this one. So basically, it was only him and me.
I was the one leading sock. He was almost all in while I still had some chips (but not enough after this to compete seriously with him. If I had to put weight I'd say that the average table had 2, he had 6 and I had 9 since he put almost all in and I called it hurts me really bad).
Franz, I agree with you and must admit that I don't totally recall exactly all the card on the table but what I am sure of is that there was no potential color and that I wasn't worried about the straight (which I agree is not enough information by itself).
Franz, thanks for your advice. As you said, my memory here is a problem which is not really helping at all. As I said, somehow I wasn't worried about straight. It might be possible the straight was possible with the river. Anyhow, do you think after several hours someone who is second in the chips will raise that hard betting all on one card or a straight of low card straight from the blind ? I just thought it was very unlikely.
To be honest this guy after this was in his lucky day. He got a straight flush later on and other very low probability card. But before he won most of his coins by raising in sort of the other fold and he didn't have to show his cards and mostly when he had to he lost it. That's why in my opinion I felt wrongly confident. I guess my problem here was that I couldn't imagine that someone would follow me on the blind and not have high card and I felt to confident then with my kk.
It's indeed hard to ask how would you guy reacted judging that you weren't there. Folding wasn't easy either. As you said Franz and as I said, I could see that he was trying to get more chips out of me but still, would you guys have fold ? My problem to be honest is that even now if the same situation come by I'm not sure it is the smartest thing to fold.
Anyhow, tomorrow I have another tourney. If I see a delicate case like this one I'll report it here so we can discuss about it (and this time with better details).