I served 30 years in the Canadian Navy, and pranks were one of the better things we inherited from our British predecessors, but the "Tepol in the fountain" trick is a great one.
It is rumoured that one of our destroyers, while in Charlottetown, PEI, for the Canadian Centennial in 1967, repeated the same prank in a fountain that was built for the occasion. I can't find the 411 on it, but it was a pretty strong rumour at the time.
We Canadians can be "cherry pickers" in a lot of ways by "borrowing" things from other countries...shamelesly...if it is good, it is good.
Did you Ton Fives do anything similar?