The brain process that results in a joke materializing where no joke was before remains a mystery. I'm not aware of any scholarly, scientific or neurological studies on the subject.
To trust other people to keep you safe, it's very difficult. . . But when Tom Cruise is there, you just expect that he'll save you. I was like, "Tom. You're Tom Cruise. It's your job to save the day. And the day is me. You need to save it. If I panic, I expect you to be down there. "