Dishonesty is a funny thing, and for me the intent of using it is more important than the dishonesty itself. The use of deception is a survival necessity for pretty much any living thing. Even plants, though not cognitive, have evolved forms of deception. As far as humans go, the problem comes when the intent of the deception is to cause some type of harm to me or someone I empathize with.
I don't tend to deal well with angry people either, though. I don't necessarily have anything against them for it, because I'm inclined to believe that them being anger prone is in many ways just as much out of their control as me not being anger prone. I'd like to believe that it was a conscious choice, but the reality is that it's been near impossible to spark my temper since before I was old enough to comprehend what anger was. The same goes for enthusiasm in general.
Sure, animals can get angry too. I think the difference is that the triggers for that anger are a bit more predictable and easier to manage. With a dog, for example, don't stick your hand between the dog and its food. That is a trigger, and will cause it to become angry in anticipation of having to potentially defend its food. With a person, individual thought process can also be a trigger. Someone can become angry simply by having a mind in which things like a phone a phone call are triggering because they perceive it to be a threat. Maybe it's debt collectors, maybe it's someone you just don't feel like talking to, or maybe it's just interfering with trying to watch T.V., and thus has symbolic similarities with the hand getting in front of the dog trying to eat the food and we just haven't spent enough time in modern civilization to have evolved a response more suitable than anger.