https://viewfromthewing.com/you-puny...-in-next-seat/
I always say that the worst feature about staying at cheap motels is usually the behavior of your fellow guests. The same thing happens when flying Frontier -- and it's a bigger problem because you're trapped in close quarters with them in a small metal tube.
I personally have had a couple of bad experiences with my fellow Frontier passengers -- although nothing like this incident. I would say you are probably 5x more likely to have "a problem" with a fellow pax on a Frontier flight than on a flight on AA, DL or UA. Personally, I'm amazed that people are willing to be Frontier flight attendants given what they have to put up with for such modest pay.