And now a quick word about limp/reraises: people do that with all sorts of shit and for different reasons. Donks often do it with short stacks and small pocket pairs, figuring that more often than not they got raised by two high cards against which they fare quite well. Or people do it when they tilt, or when they take it personal to be raised "again". Mostly people will do that heads up.

But when it is from a tight or unknown opp in early position who does that with a full stack and facing 3 or 4 players, it is the nuts more often than not (AA/KK). People have actually come to respect that line so much that some opps now do it as a bluff, but they are still the exception rather than the rule. Without a read, don't assume a bluff.