Frank Szmulowicz, Ph. D. Feb 1, 2017:

This video plays like a tragicomedy. All the answers (nasty, bad, naughty, obnoxious) recognize and try to capture this fact.

El oso Feb 1, 2017:

@ Asker and those voting for 'misbehave' Please note that the man in the video is brandishing a pistol and threatening the activists with a knife. Would you really describe that kind of conduct as simply "misbehavior"? Come on! I think the word ''misbehave'' is far too weak for this context and doesn't convey the intensity of the situation. Also see the definition of 'misbehave' as it defined by Oxford Dictionary:
(of a person, especially a child) fail to conduct oneself in an acceptable way; behave badly. ''Josh misbehaved, pushing his food off the table''.
That definition doesn't quite fit what we see in the video, does it? :)
PS Nothing personal, MacroJanus, it's just my meticulous nature kicking in ;)