OK...Another one:
Same three guys have to go to the restroom...
After finishing, the Duke guy goes to the sink and dabs a tiny bit of soap, barely gets some water and washes his hands...
He looks at the other two and says, “At Duke, they taught us thriftiness...”
The NCState guy goes to the sink turns all the hot water on, grabs the soap and soaps his hands and arms up to his elbows and scrubs...
He looks at the other two and says “At NCState, they taught us cleanliness....”
The UNC guy turns and starts for the door...The other two say “At you going to wash?”
He says “At UNC, they taught us not to piss on our hands...”
If Sports Commentators Had No Filter - Key & Peele
https://www.youtube.com/watch?v=BusChLgkLnA
That one actually started life as an Navy Officer and Marine NCO joke. Way back in the 70’s was the first time I heard it, at Great Lakes.