1) you yell out "Clear Prop!" whenever you boot up your computer.
2)You look upon other cars in traffic with you as fellow aircraft on a taxiway.
3)Your wife or girlfreind warns you of a car entering an intersection ahead to which you respond "Roger, I have the traffic in sight."
4)You delight your little niece by painting up a 747 as the personal aircraft of her favorite Disney Princess and flying it to whatever destination she picks whenever she comes to visit.
5) Everytime you see an interesting aircraft in the news or on some TV show, you look for an FS version of it.
6) you've probably put in more flight time then most "real" pilots.
7)You've pulled stunts that would have gotten you killed or arrested if you had tried them in a real airplane.
8)You thought plowing into buildings was a riot, until 9/11 happened.
9)You sometimes give your "Virtual" passengers an in flight commentary on the scenery your passing over and thank them for flying with you at the conclusion of your flight.
10) Your aforementioned niece also likes to play airline hostess and can give the entire pre-flight safety message thanks to you.
Thanks for looking!

I've been driving my wife crazy with #3 for a while now. 

She claims I need help, or a vacation.    

I'm also very guilty of #5, #6, & #7. 

#11 You are forcing your plane down because you heard your microwave beeping.. 

I do #3 all the time in various forms. For example the other day at work I warned a coworker that someone was about to come in through a door which he was standing in front of by saying "You have traffic, your 6 o'clock low".

Why do I feel the #7 is a dig at some of my antics in the screenshot forums over the years?