Because they might connect the drain line to the wrong suer.
They both say "YO HO!" and walk with a limp!
He didn't believe in love at first sight.
He thought nothing could possibly travel faster than sea.
It doesn't work.
Professional courtesy.
He wanted a law-suit
A Leek!
Ask him/her to pronounce unionized
Connect the Dots.
guy in the back stands up confidently Pterodactyls
A construction site