In my experience, the Monarch cabin crew are very professional and deal with rude passengers extremely well - which is on the rise unfortunately. I guess if the parking or journey in is difficult, or security have gone for the full treatment, the poor cabin crew are an easy vent after a beer.
I was flying last year and a guy was kicking a child's seat in front of him, just because the child was not sitting still - the father went mad and it all kicked off at 38,000 feet. Another woman was really rude and cutting to the crew, just because she felt like it. Honestly, there is just no need for that. The crew are there for our safety, not to abuse.