Blue-headed Pionus

Question
I have a male Pionus..He is about 2 and 1/2 years old. He goes through periods where he can be overly excited and aggressive. When he is like this I can tell he is going to bite..he will fluff up and he will actually hop from the perches in his cage until he gets out. I made the mistake once of getting him to step up ...but once he did he bit HARD on my hand. I know you are not supposed to show fear but it HURTS. I can usually tell when he is going to do this so now I avoid picking him up. He does tend to fly after me lately into the other room to follow me ( I guess I am going to have to have his wings trimmed...this has just become an issue) If he is on the floor he will step and not bite..but when I try to get him from his cage he bites. What are your thoughts of putting a glove on when I handle him for awhile.
The other thing is that he LOVES my dogs. I have a couple of small dogs and he will actually come down low in his cage to talk to them..IT is so funny..Last night I saw him regurgitating by one of the dogs..I know that means he really "likes" my dog..What should I do about that.
So I have two questions..but you seem to know what you are talking about. Thanks a bunch.

Answer
Ahh Ha!  When I got to the part about the wing clipping it all became very clear :)
 This will be a huge step in getting more cooperation from him for pretty much anything.  It's excellent that he fledged well (learned to fly and get his confidence), but now that he has, it's time to clip and prevent "uplift" with flight. He should just be able to glide gently to the ground if necessary.  At first he'll resent this and perhaps be a bit afraid, but with gentleness and encouragement, making sure he feels safe and offering TONS of praise - he'll adjust.

I know it hurts when they bite - but reacting is something you CAN train yourself not to do (just keep reminding yourself that you'll live).  Well, that's sort of a joke, but seriously, I deal with macaws! The strongest beaks in the parrot world! I'd got to bed every night with ice packs on BOTH arms from a couple of them.

 To help make it less painful, I'd layer thick socks (cut the toes out and slide on) under my shirtsleeves.  The pinch is still felt, but at worst it results in a bruise rather than a skin break.

Remember to never elevate the bird to above your eye level. Once they step up - keep them just below your shoulder level.

 When he fluffs up and threatens - firmly (but without shouting) tell him "(name) don't you do that!" and look him right in the eye, move your arm in and continue to firmly say "step up".  Once he gets a bite out of the way, continue moving your arm in, gently-gently, but with a smooth and confident motion, to his chest level, just above his feet. Touch your arm to his chest and the automatic reaction is to 'step up'.

Practice - practice - practice.

Finally, the regurgitation is something best ignored.  Often they'll re-eat it (let them as long as the surface it's on is safe/clean).
Otherwise, when you notice him bobbing his head to start this action, distract him.  We keep our voices level and tell them "(name) that's not necessary" and we do something else with them.  
 We have a couple who try to "sneak" it out, I swear I've never seen a bird regurge without the head bob, but one of our macaws can just "nod" once and produce a feeding!

 Don't forget to check us out www.4AnimalCare.org ("birds")