American pilot Christopher Elliott has called for an airline dress code. He insisted that passengers should never wear flip-flops, shorts or shirts with short sleeves.

The pilot argued his position in a Seattle Times column. In his opinion, such an innovation would improve passengers' manners.

"It's time to introduce a dress code for airline passengers. Seriously. There has been a sharp decline in the level of politeness of passengers on board. Psychologists admit that if people choose their clothes carefully before a flight, they will be more respectful - and less likely to quarrel," Elliott writes.

The pilot believes that a business style, or rather a lighter version of it, is better suited for the plane. We are talking about pants, shirts with a collar, dresses. Under the ban, he believes, should get flip-flops and T-shirts with offensive logos.

"Dress more modestly. Remember, you're in a public place," Elliott insisted.