Two Texas Aggies (Texas A&M…) are working a construction job installing drywall.

The more senior one notices that the junior guy is throwing away about half of the his nails, and inquires.

The junior guy tells him that the ones hes throwing out have the head on the wrong side.

You idiot! exclaims the supervisor, Dont throw those away! Those are perfectly good nails, and, pointing to the other side of the room, they just go on that wall over there.