Butter and Jam: If you drop a piece of bread on the floor, you can bet that it will land on the side that is covered with butter or jam.
Make Haste Slowly: when you are in a hurry and you're using a marker or a roll of sticky tape to wrap your package, the tape will almost certainly fall off the table and roll to the least accessible corner.
In a Fix: When you're carrying something and your hands are full, your nose or back will start to itch. Consequently, you need to put everything down to scratch your nose or back.
The old excuse: you tell your boss you missed work the day before because you we're I'll. However, some colleague is sure to comment in front of him or her about your wonderful party two nights ago.
A friend in need: you finally sit down to relax after a hard day's work. The telephone rings, you answer it, but you can't hang up because at that moment the person needs a friend to talk to.