1. To encourage the development of an exciting plan that involves multiple people, and then just as everyone is on board, immediately change your mind about participating.
2. To propose an awesome plan as above, let people discuss it and get stoked, then reveal that you can't participate.
It is not enough that you change your mind later. It must be right away - usually in the very discussion where the idea was first brought up.
Weren't you guys all getting a house together? Yeah, but Erin tylered.
He fucking tylers on me all the time!
Why do you hang out with that faggot pot smoker, hes a tyler.
Girl 2: You're lucky to have him. He's known for being faithful.
girl two: I know, he sits behind me in math class. His name is Tyler.
Girl one: I would totally blow him.