ME: Hey Lisa, you could get this T-Shirt for the next time you attend a PTA meeting.
LISA (looking at the above T-Shirt): I put the Teacher's Association in the PTA?
ME: No, you put the T&A into the PTA.
LISA (looking very confused): I don't get it?
ME: You do know what T&A stands for don't you?
LISA: Yeah, I don't think so.