I was at my brother-in-law's house over the weekend and his male exhibited the above behaviors. Mine have never done this, they are as sweet and playful as can be. Also, my b-in-law lets him have free run, but, had been gone for a couple days so the little guy had been closed up in a very small viv. Might this had something to do with the behaviors?
He's a fully grown adult then. Is he treated well? Is he handled regularly? If he isn't used to handling or if he isn't feeling well he may be more aggressive than other dragons.
He is treated well, and handled almost daily. During the day he has run of the living room. His viv is is about 1 1/2 his length. If he is used to getting out and is stuck inside for a few days would that bring on the aggressive displays?
That's very strange then. Sometimes they can catch a glimpse of something that sets them off or they just don't feel good one day and are more agitated than normal. I'm not sure if that's the case here though. Has he been acting normally since you left?