It's funny when you get paid to do what you like. It stops being a chore and you feel like it's almost cheating. You're paying me for this?

Then of course, not all days are like that. Although John Conway allegedly said that he never worked a day in his life. Can't find the source of that though.

I think it's sometimes an overlooked mistake in companies when they move people around. "Hey, Tim is like a world class performer. He's doing X, let's move him to Y". It works for some, but not for others.