Well. . I've got a fishing knife...
I'm glad someone thought of using sockets as a weapon

Since I'm a David, I'd like to imagine knocking over a Goliath or two , like ZEEW mentioned.
For my birthday one year, Dad gave me a pair of fence pliers (I believe thats what you call them). They are a pair of pincer like pliers that have a small hammer surface on one side of the jaws and a pointed end on the other jaw. Nice and heavy too. I thought at the time that they would poke a neat hole in someone's head, so I loaded them into the top of my tool box, just incase I would need them someday.
One time, while changing a tire at the airport, on one of the company trucks, a guy walked up behind me, kind of slow like. To this day, I'm sure that he had bad things in mind for me. If he didn't, he sure was surprised when I spun around and swung my long handled 1/2" breaker bar at him. Thankfully he took off running and didn't start shooting.
Talking about bean weapons

At one job, we had ceiling mounted radiant heaters in the garage. I used to take my lunch, wrapped in foil and set it on a cross brace inside of the heater to warm it. One day I took a small can of beans for lunch. A half hour before lunch I pulled the can of beans from my tool box and punchered the lid in a few spots, to release the pressure while it heated. I put it on the cross brace and went on with my job of the day. About fifteen minutes later there was a big boom. Dust and beans were flying all over the joint. Evidently the holes plugged up with bean juice and sealed the can up, then the pressure began to build. Everyone in the building crapped their pants. What really made it fun, was the fact that nobody in the place knew that I heated my lunch that way, so they had no idea what was happening at the time of the blast.
Doc