I know this is stupid and a cheap finish, but I would mark out if...

[Ol Dirty Dastard]

Say a champion (preferably face, even though this is a total heel move) has his championship on the line against a red hot heel. In this match he is totally in over his head, he's not necesarilly getting destroyed, but he's getting beaten to the punch, the guy is stronger, faster and just "has it" that night. It's a competitive match, but one man clearly has the advantage. This is on a RAW or Smackdown not a ppv.

Then finally they're about to have that final showdown spot leading into the finish, like they even pause, for a staredown, build it for the fans, and then in front of the ref, the champ feigning like he's going to engage in a grapple, just kicks the challenger right in the balls, in plain site.

Not like one of those cheap chicken shit heel finishes where the monster face is beating his ass and he does a weak little upper cut lowblow... but just like "Fuck this!" and jjust a massive, stiff kick to the balls. And the ref would have no choice but to ring that bell, and I would probably laugh my ass off. Have the challenger sell it huge, like he got shot. I think that'd be the best shit ever. lol.