Funny Dirty Joke

A construction worker is working on the 10th floor when he relizes he needs a saw so he looks down and sees a fellow worker. So not wanting to go back down, he waits till he looks up and points to his eye for (i), then points to his knee for (need) and moved his hand back and forth in a saw motion. The fellow worker then proceeded to pull down his pants whip his cock out and started masturbating ferociously. The worker on the 10th floor gets very angry goes down there and says, "What the f*ck are you doing!?" The guy says, "I just wanted to let you know that I'm coming."