Ignore it. It's none of my business to begin with.

I'd notify the sales assistants immediately.

Chase them down and beat them to a pulp. Coz I'm a hero, y'know. It's the shit we do.

I'd join in. If they can steal, so can I!

Sexually seduce the robber. I like a bad boy.

Scream to the top of your lungs and point the robber out. Because I'm a drama queen.

I'd talk to the robber. Maybe he just wants attention? Nawww poor widdle guy~~~