Rowdy fans, rude customers, fliers out of control — Americans must learn how to be ruly again

Hey. HEY. Get over here and listen up, knuckleheads. Every time I pick up The Post, I’m shocked at how discourteous everyone has gotten. Have we all forgotten how to behave towards our fellow man? I haven’t observed so much contemptuous behavior since the last time I talked to a French waiter.

Let’s pause to roll back our memories to eight weeks ago, and how we pictured our post-pandemic summer. We were all going to come blinking out of our caves, hold hands and break out a couple of choruses of “I’d Like to Teach the World to Sing” together. Instead, you’re acting rude, lewd and full of ’tude. Yankees fans are behaving like rabid wolverines raised by French waiters, complaints about disruptive behavior on flights are up 500 percent over 2019 levels and a guy punched out a horse in Central Park.