Aussie was taught not to piss on his hand

An Australian Combat Field Engineer Sergeant and a U. S Marine were on exchange duty and were sharing the latrines.

The Aussie Sergeant finished first and walked out without washing his hands.

The U. S Marine watched in disgust, finished his squirt, washed his hands and walked up to the Aussie Sergeant and said.

"In the U. S Marine Corps we were taught to wash our hands after a leak".

The rather large Aussie Sergeant replied, "In the Australian Army mate, we were taught not to piss on our hands...!"