I remember a few years back travelling as a pax in cattle class we were seated next to this lovely older lady and the guy in front of us put his seat right back while she was eating.
She very politely asked if he would sit forward until she finished, which to no surprise said no.
One of the flight attendants stopped and asked if he'd put the seat up - to which he replied "No, but you can do what your job description says and bring me a few beers."
Needless to say, he then promptly took a couple of sleeping pills and mostly snored and farted all the way to London. How delightful.
What a tool.