As someone who juggled being both the Stage and Wardrobe manager for a thankfully short period of time, Joker can confirm that it's caffeine and pure stubbornness. If his own workaholic nature played into things, well, he can't really say. He can definitely say that Carly is about as bad, however.

It's not exactly the best way to live, but... hey. Work's work. Right?

At least most of the time his work is the fun short, and he's quick to laugh at Julien's excitement. As someone else who can also fly, well, he won't judge too bad. "Sure, drop on by whenever ya like! Just don't let Carly think I'm tryin' ta poach ya. I did that a few times, before the recent year."