Here are some of my favorites from brainstorming with a friend. I've always been a fan of the saying type aspects.
"I got this."
Invoke: Wherever tackling a dangerous situation by yourself.
Compel: Player, "I could really use some help here!" GM, "No, no, you got this."
"At least it can't get any worse..."
Invoke: When making things worse for your opponent.
Compel: To make things worse for you. Much worse.
"...except me."
Invoke: There is always an exception to the rule, and you are it. Invoke when being the exception to the rule will help you in a situation. (A drive by happens and a bunch of people are hit with bullets ...except you.)
Compel: When being the exception to the rule would be bad in a situation. (A single gun shot rings out, and everyone appears uninjured ...except you.)