I once thought a customer was stealing one of our mags when he place his hands under his shirt and pulled it down over his pants. I asked him to show me his hands, he did. He was very offended that I thought he might be stealing magazines just because he stuck both hands under his shirt and stretched it down like that. He explained that he was only looking at the swimsuit mags and had a hard*n and was trying to cover it up.
He was mostly upset that I made him lift his shirt back up and everyone saw his hard*n. The funniest thing was, he made a big scene and got everyone's attention. Embarrassed, I apologized like a dum bass.