One of these hands that I have lost several tournaments with is the 2 low pair hand. It looks safer than it is. Say you have a pair of 4's and a pair of 7's after the flop. Say you bet pot and 2 players call. One has gotten a pair of kings. If he gets a 2nd pair on the turn or river or if a third pair shows on the board; you lose. : Also the 2nd player may have a 4 flu or a 4 str. Either way your 2 low pairs are less strong than they look.