I've only had 1 encounter with a bad attitude cop, he had tried to convince me that he can take my license away if I disputed a ticket he gave me, then he went to tell me that he could take me down, "easily" even though i was 2x his size. I hadn't mentioned anything about being bigger then him, but, I guess he was intimidated. I told him I'll see you in a year. A year later, I went and he didn't show up, ticket gone

. When it comes to cops, you just have to stand your ground, but, do not present yourself as a threat.