Terry is holding Q♣ Q♥ on the button and has raised Pasi, a loose player in mid-position. Pasi reraises pot. Terry has a premium hand, but knows that against a tight player he might not be in good shape. Pasi however is a kind of a maniac and is the type who thinks ATs is a premium hand. Thus Terry considers his chances very good at this point. He also knows that Pasi will make a large bet on the flop regardless of what comes, so he makes it simple and shoves.