When the zebra has to explain which side is heads and which is tails, it's a sign to stay away.
Half dollar out of someone's pocket not good enough? Assuming that someone isn't Brady of Belichick, that is.
The Pats don't win often at all, Belichick pointed that out on the radio after winning the KC flip.
They've won just 2 out of 8 SB coin flips in the B and B era.
(Not sure how many of those 8 the Patriots actually called, but the point is they've lost 6/8)