You are a tool - first installment

For a while now, I've been trying to come up with a good working definition of the word "tool". It's one of those things.....you know a tool when you see one, but I just can't define the word. So I've decided to document the tools I encounter in my life and try to come up with some sort of a pattern that I can work into a definition.

Here goes.....

Hey guy with no shirt on who I saw crossing Linwood at Prospect....I realize that the sun is out, but it's still only 50 degrees. I don't care how big your muscles are. You are a tool.