10 things you should never do on a flight, according to a former flight attendant

• I was a flight attendant for two years, and I wish passengers would stop doing certain things. 
• It's pretty gross to go to the bathroom without shoes on or leave the toilet unflushed. 
• You make everyone's life harder when you bring too much luggage, and we can't help you lift it. 

I worked as a flight attendant on domestic and international routes for two years, and I saw all kinds of behavior on planes. 

Here are the top things you should never do on a flight.