Hot Date

This kid walks into the pharmacy:

- I've a hot date tonight, a sure thing, and my buddies said you could fix me up for it.

- What do you want?

- Well, it's a hot date, man. A sure thing? You know...

- What do you want?

- I need some protection, alright??!?!

- What size?

- Size? I dunno... Whatever is considered average I guess.

- That'll be $2.35 including tax.

- Tacks?! Tacks?! I thought they stayed on by themselves!