Here is a situation where checking the nuts killed my opponent.

I was about 90% sure of what he had here, and thats why I didn't fire out a flop bet.

Empire $25NL

Boy was that turn pretty.

Hero ($32.45) is the button with

Villian ($10) is one seat from the cut off and makes it $1.50 to go.

1 fold

I call, and its folded back to villian.

Flop:

Villian checks, I check behind

Turn: giving me quads. all the money is getting in now.

Villian bets .25, I raise to $1, villian calls.

River:

Villian bets $4, I raise to All-in, Villian calls.

Results: Hero Wins 20.92 from the pot with 4 Tens.