The company hires a new man. He was supposed to start work on a Monday, but instead of showing up, he calls his boss. "I'm sick," he says. The boss excuses him. The man shows up Tuesday morning and works throughout the week, greatly impressing everyone with his diligence and ability.

The next Monday, he once again calls his boss. "I'm sick," he says. The boss reluctantly excuses him, but notices that this is the second Monday in a row. Once again, the man shows up Tuesday morning and works throughout the week, even faster and better than the previous week.

The following Monday, he calls his boss again. "I'm sick." The boss excuses him, but decides to call the man to task on Tuesday. Tuesday comes and as soon as the man shows up, the boss calls him into his office.

"What gives?" asks the boss. "I can see you're a hard worker, but you've only been here three weeks and you've called in sick every Monday."

The man says, "Well, my sister is in a bad marriage and I go over to console her every Monday morning before work. One thing leads to another and we end up making love all day long."

"Your sister!?!" says the boss. "That's disgusting!"

The man says, "I *told* you I was sick."