It seems to happen every multi-table tournament. I'm playing solid poker and am with or above the average stack size deep into the tournament and then WAM it hits me. I'll have two-pair, maybe even top two-pair and am betting strong with an opposing flush or straight no where in sight.......we get to showdown where my opponent will have a pocket pair, making a 3 of a kind set that i didn't see coming. This will most certainly cripple me for the rest of the tournament. Even in ring games, the situation is bound happen and cut down my stack after a few hours of playing.
My question is: How do you defend against such an impending doom? What is there to look for in online games as far as tells for this? You most certainly can't fold every time someone re-raises you at showdown because you're scared of a set.