Baseball Bats are typically made out of wood but the ones used in tee-ball are made out of some sort of metal and therefore are better for knocking someone's head off.
Apparently they placed them in the sports section by accident.
Harvey: That guy is a total douchebag, he spilled a soda in my head, and stole my bag and hid it in a dumpster. So I smashed him with my baseball bat to get a revenge.
- "I had a baseball bat. Needed to wait it out..."
idoit 2: SURE!!
me: with what?
idoit 1: duh...a..uh..
idoit 2: A BASE-BALL BAT!!
hooker: this is all i got
pimp: thats it? im gonna slap you with my baseball bat bitch!