In my line of work, you'd never think you'd have to contemplate what your weapon of choice would be if you needed to arm yourself in the grocery store. When you're a cashier, you have very limited resources. If you worked as a grocery stockperson, you already get to carry around a box cutter. As a cashier, yes we have guns, but they only shoot lasers. Weak lasers. In the shape of a 3" bar. Not what I'd consider useful. Just saying.
Fortunately for me, I learned that artichokes can be useful weapons. No, really. How did I discover this? An old man attacked me with some. About 12 of them actually. For you educationally challenged folk, yes, 12 is a whole dozen! I was nearing the end of my shift when an old Italian man with a heavy accent came through my line with a hibiscus plant and an armload of artichokes. First I scan the hibiscus, and I hear "No! No much!" Um, what? Apparently he meant that I was charging him too much. I pointed out the little price sticker that said $14.99. "No! Is $2.99!" The hell it is. To humor him, I got the floral department manager over. She politely told him that the hibiscus was $14.99 and that maybe he read another sign by accident. Surprise surprise, the guy decided he didn't want the plant. Fine by me. Whatever. So I ring up his artichokes. Being out of season at the time, they cost $2 each, so his order came to $24. "No! Too much! You no make it $24! Not pay that!" I respond with "I'm sorry, sir. They really are $2 each and I'm not allowed to change the price." At this point, he starts to leave and I assume I'll just be voiding his order and taking the next customer. Life is never that easy. He turns back around and begins throwing the artichokes at me and yelling god knows what in Italian. Not only are artichokes solid objects and not fun to get hit with from the get-go, but they have these tiny little prickers on them like cacti! After being hit with 4 or 5 of the dozen he threw, he makes a face at me and leaves the store.
So, if you ever find yourself in need of a way to defend yourself in the produce section, artichokes make great weapons and and should be your projectile of choice!