I've seen this one more than once:

"It's the blue wire. It's always the blue wire..."

Shwit, Shwit, Shwit (Zorro's parting comment).

"A little traveling music, please..." Jackie Gleason

"I never felt better..." spoken by a many. Which reminds me...

I read in a book of famous last words of a noble lady ( a duchess or some such ) who lay dying, to her doctor "Anyone who can fart like that can't be too bad off."

In response to the shrew's question, "Where are you going?" "To the store to get some (name your product)!"