I need this kid's joke explained to me. (joke inside)

Umm,

{…} The headers or fetching dogs keep livestock in a group. They consistently go to the front or head of the animals to turn or stop the animal’s movement. The heelers or driving dogs keep pushing the animals forward. Typically, they stay behind the herd. {…}

Since this has just been a series of jokes for some time, let’s move it from GQ to MPSIMS.

Colibri
General Questions Moderator

If your dog tells you he can drive then he’s probably lying. An automatic maybe, but no way he can drive a shift.

What’s gray on the inside and clear on the outside?

An elephant in a Baggie.

Then there’s the famous:

One morning I shot an elephant in my pajamas. How he got in my pajamas, I don’t know.