Some people are so transparent but because of the "legal" consequences you can never call them out on it!
It was a crazy busy Saturday and I had to jump on register to get the line downs. I call over the next in line, a woman, who is buying a large artist utility box. This box has a tray inside with spots for pens, brushes, etc.
As I take the box to ring it I notice it is quite heavy, so of course I open it as I would have done anyways. I lift the tray and there are 5 drawing pads stuffed inside.
As I take them out she exclaims, "Oh how did those get in there?"
I just move them to the side with my returns and say, "Okay you must not want them then!"
But she says, "Wait, those look nice I'll take one."
What I really wanted to say was: "Really. You're trying to act like you didn't just try and steal those art pads priced at about $20 each. Of course you didn't stuff those inside your box and hope I wouldn't notice. Those aren't yours, some other customer did it! You could have gotten away with it if you didn't proceed to then buy one of them when I caught you! Stop trying to steal!"
But of course I just silently rang her up and watched her walk out the door.