"Kids Say the Darndest Things" joke

A first grade teacher collected old, well known proverbs. She gave each kid in her class the first half of a proverb, and had them come up with the rest. These are great:

As You Shall Make Your Bed So Shall You... Mess It Up.

Better Be Safe Than... Punch A 5th Grader.

Strike While The... Bug Is Close.

It's Always Darkest Before... Daylight Savings Time.

Never Under Estimate The Power Of... Termites.

You Can Lead A Horse To Water But.. How?

Don't Bite The Hand That... Looks Dirty.

No News Is... Impossible.

A Miss Is As Good As A... Mr.

You Can't Teach An Old Dog New... Math.