Buster, please take your seat.

Now, when we multiply fractions, we multiply the two numerators, then we multiply the two denominators, and then divide those two products, like so.

Any questions?

Uh, Mr. Ratburn, how many germs are there in this school?

Well, that's not exactly a math question.

But I suppose there could be thousands on that pencil in your mouth.

See, Buster, it's not so hard being clean.

Uh... Don't you feel better?

You know, Buster, you don't have to be that clean.

Well, are there germs or aren't there?

Okay, then.

You know, Buster, there are good germs as well as bad.

We couldn't digest our food if we didn't have bacteria inside us, breaking it down.

They're already inside of me?!

Excuse me, I got to go wash my hands.

Great, now you've turned your best friend into a nervous wreck.

Yeah, and you've probably ruined a perfectly good pool party.

Huh?