10. Anything Offensive
Offensive clothing may get you kicked off a plane, but it could also draw extra attention from TSA agents (though it’s more likely that airline staff, rather than an airport security agent, will ban you from flying due to inappropriate or offensive clothing). Stories of flyers prohibited from planes due to poor wardrobe choices abound, and, for most of them, the trouble occurred after they made it through the screening process. Still, agents may pull you aside for additional screening if they perceive a threatening or questionable message on your slogan T-shirt. Bottom line: If you woudn’t wear it to a family-friendly restaurant or even to church, don’t wear it for air travel.