This morning (around 6:00) a teammate stopped by my office. She stared straight at me and said "Tell me a a joke." I said laughingly, "excuse me?" and she repeated the request. She went on to explain that there were no cups in the break room for coffee, and that she had just killed a huge cockroach while looking for some. I felt a little guilty about this, because around 4:00 I had gone looking for cups myself and had run into the roach as well. I had quickly shut the cabinet door and gone back to my office.
Anyhow, I used my favorite joke of the moment to placate her: "A priest, a frayed knot, and a penguin walk into a bar, and the bartender says 'What is this, a joke?'"
She stared at me blankly, and I fumbled around to explain the punchline. After a pregnant silence, she said, still unblinking, "I need another joke."