Originally Posted by Scott_Thornley
Originally Posted by 160user
Originally Posted by reivertom
The only two rules you need to know about plumbing is....Sh## runs down hill, and don't bite your fingernails.

Actually I heard this as 3 things: Sh## runs downhill, don't lick your fingers and Friday is payday.

s--t runs down hill
Never work with your mouth open
Don't bite your fingernails
Don't eat the last bite of sandwich
Payday is on Friday

A tinner ain't nothin' but a plumber with half his brains knocked out