Incident between Errol and Johnny Weissmuller?

In addition to being a big Flynn fan, I'm also a fan of Johnny Weissmuller. Now I know Errol and Johnny were, at the very least, “friendly acquaintances”…they were sometimes in the same social circles in Hollywood. Also, I know Johnny participated in the press junket for “Santa Fe Trail” with Errol.

So, has anyone here read the book “Tarzan, My Father” by Johnny Weissmuller, Jr.? In the book, there's an incident mentioned of a yacht race between Errol and Johnny Sr. in which Errol lost, and in his drunken state almost blew a hole in Johnny's yacht with a cannon ball!

Now I have not come across any mention of this incident anywhere else except in Weissmuller Jr.'s book, so I'm curious to know if anyone else here has heard of or come across a mention of that incident elsewhere.

— Rachel