Is nothing sacred? When a simple baseball cap is actually a deadly weapon in disguise, can we ever really feel safe? I guess not.

The Sap Cap features a pocket on the back that has a "unique impact material that is 110% the density of lead and will not rust." This impact material is designed to whomp people on the head; simply grab the bill of the cap and swing away. You'll never feel safe at a baseball game again.

Budk via Boing Boing Gadgets