Keith McCready and the late Michael "Geese" Gerace definitely were buddies with Waterdog. I only met him one time.
My memory of Waterdog is from when he came to my neck of the woods looking to get played in 1985. He was kind of quiet, almost shy. The thing I remember about him the most is that he was really, really looking forward to getting a stand-in part in a new movie that was being produced, which later ended up being "The Color of Money." He told us they were paying pool players $50 to be stand-ins, so that the background of the scenes looked real. He really wanted to be in that movie. How ironic it is that I ended up with Grady Seasons as my other half decades later.
I heard from others that Watredog did suffer from substance abuse, which probably ended his life prematurely. He hailed from Waterford, CT, I believe, which is how he obtained the moniker "Waterdog." He did not have a happy childhood, and so when he was a young'n, he ventured out alone on the road to greener pastures using his cue to lead the way.
There was something very sweet about Waterdog's persona when I met him the one and only time.