SALESMAN: Are we looking for anything special? Perhaps a ring for the lady?
PENNY: [snorts] Trust me, we are not a couple.
SHELDON: Excuse me. I don’t see why you get to snort derisively and point that out. You’d be lucky to land a fella like me.
PENNY: Fine, go ahead.
SHELDON: [snorts] Trust me, we are not a couple.
The Big Bang Theory, 5x12 – The Shiny Trinket Maneuver