Things that can get you banned from …

… Renting a car:
– Leaving a loaded gun in the car when you turn it in
– Multiple smoking offenses
– Disputing car damages (even if you’re right you might still be given thumbs down the next time you try and rent)

… Flying:
– Being fresh with a flight attendant, even talking back or disputing their authority; and don’t try and hit a flight attendant or trash the inside of a plane. 
– Even a simple misunderstanding can get you onto the airlines “no fly” list. Be nice now!!!