Flop dealt without burning : ruling?

[FatLoser]

Playing in a tournament. Me and another player to the flop, the dealer does not burn and just deals the flop. What should the correct ruling be?

1) Nothing happens, play continues.
2) Deal another flop card and burn the exposed card that should have been burned in the first place.
3) Reshuffle, burn, and deal a new flop.
4) None of the above, here is what should happen... (fill in)