This thread got really stupid.
"ERRG it's hard laying pipe, flargelblarg! CONTRACT NEEDERS!"
"It's not a contract, it's a dude and his buddy working out a deal between friends and the buddy is being a bit of a ******, making beer isn't as easy as AB says. Really, shouldn't even be an issue if the plumber was a decent friend."
"I'M STILL RIGHT, HERRRRRRR."
Good god, people.
Thanks for the insightful contribution.