Tiger: My colleague only drinks water. I only see him drink water at work.

Disney: Customers who order three scoops of chocolate ice cream get a fourth scoop. Customers who buy three scoops of any other ice cream do not get a fourth scoop. Joe has four scoops of ice cream, therefore he must have ordered three scoops of ice cream.

Detective: I couldn't find my jacket that I left in my car. My keys were on my coworkers desk. My coworker must have taken my jacket.