Raydor questions whether or not Dunn can be trusted on Major Crimes. "Cheaters Never Prosper" is the ninth episode of the show's first season.
Added:

Major Crimes Season 1 Episode 9 Quotes

I'll be spending time in the breakroom and if Mr. Dunn ever shows up, tell him I'm not spending the weekend with him until he learns to tell time!

Rusty

Tao: You'll be surprised to learn Vegas has a lot of scams.
Provenza: Whaaaaaa....?
Tao: Shocking, I know.