Sometimes, everything goes absolutely perfect and, no matter what you do, like say, grab Tony Parker's face and Nesterovic's shorts simultaneously, nothing bad happens (In this case, a 'no-call' steal by the Mavs). Sometimes Manu Ginobili is called for an offensive foul after you elbow him hard enough to draw blood. Sometimes, the other team's back-up point guard inexplicably gets himself thrown out in the first quarter. Sometimes you hack Tim Duncan so hard and so often that the refs just stop calling fouls. Sometimes the other guys can't make lay-ups while you drain every turn-around, off-balance, buzzer-beating prayer you throw up.
You should really, really, really enjoy these very rare moments.