Enter into a dispute over the sale of a fake Zippo lighter with someone who also happens to sell imitation samurai swords in their overpriced junkshop. Especially if they’re a psycho. And Thai. And a Thai Kickboxer.
And especially if you’re the sort of person who drops into a crouching tiger stance and yells “bring it on, muthafucka!” the second some psycho shopkeeper pulls a sword on them.
Because even if you don’t somehow get stabby-stabbed and your arms don’t get hacked off … because… let’s say a bunch of neighbouring shopkeepers intervene and wrestle the sword off of the guy and slap him around a bit… or something … you’re still going to feel pretty stink when you remember that your partner was standing next to you and she’s bawling her eyes out and completely freaked out by the whole experience.
I mean, I don’t know what the probability of such a thing happening is, but, you know, it could happen.
So, yeah. You’ve been warned.