Showdown Scenario where bluffer does not want to show

[PantsOnFire]

Step 1: Collect the pot.

Step 2: Show your hand unless you have a very good reason not to.

(For me, it might be that I had the nuts since the flop and strung him along and got him to bluff into me. I obviously played him like a fiddle and don't want to change that scenario. In such a case, I would muck and lie saying I had top pair or something.)

(Another case might be if the game was for higher stakes and the players were all very good. I would humbly explain that I need all the edges I can get against the good players in this game.)

As a final note, at a low stakes 1/2 NL cash game I would probably always show just to keep the game light and fun. In a tournament, I might be a lot more reluctant to show at all, since I do change gears a lot and don't want players to know what mode I am in.