I like to think the reason the robbed guy didn't shoot the robber initially was because the robber was less armed than him and it wouldn't have been fair. When he stole his first gun, he must've thought "ohhhh, big mistake".
I'm imagining that his wife will never hear the end of it. "See honey, and you said I didn't need to carry two guns around all the time. Well look who was right about that."
Reminds me of a passage from my favorite Discworld book, Night Watch.
“I didn’t think you was stupid, Mister Vimes…”
“What?” said Vimes, looking down suddenly. Carcer was smiling cheerfully.
“I said I didn’t think you was stupid, Mister Vimes. I know a clever copper like you’d think I’d got two knives.”
“Yeah, right,” said Vimes. He could feel his hair trying to stand on end. Little blue caterpillars of light were crackling over the ironwork of the dome, and even over his armour.
“Mister Vimes?”
“What?” Vimes snapped. Smoke was rising from the weathercock’s bearings.
“I got three knives, Mister Vimes,” said Carcer, bringing his arm up.
What's the child game called where you put one hand on the table and the other person puts their hand on top and then with the other hands and then pull out the first hand again?