You met Lucifer in a bar. He was drinking after stress with some paper work (And because of Depression). You were there because you were depressed. It was just you, Lucifer, and the bartender.

You saw him, and decided to make a deal with him. Work for you, and become less stressed. Problem is you worked at a circus. You were a ring leader. Lucifer thought, hell no.

"Okay, my friend you want to let me in? I hate to tell you, but it just won't happen."