I would never fold KK preflop, except for ONE situation, and it isn't at cash tables
If you are playing cash, you have +30 buy ins, so one cooler will not affect that much
The situation i'm talking about is at an MTT FT, 9 people left, you are the 2nd in chips and the chip leader 4bet/5bet jam on you. In that case there is 3 possible
hands for he: AA, AK and QQ. AA you are a huge underdog, AK you have 65-70% chance of winning and QQ you are crushing. But you have to see the money jumps. If he has AK and win one of the 35% times he wins, you are out and only win like 10% you could win