Have had birds since 1986. I have never given one away. And yes, they do drive me a little crazy at times, but mostly they are reacting to my stress. I will tell you, however, that the good times and the laughter they elicit because of their antics, far out way temporary bad behaviors. I mean everyone has a bad day occasionally!
I believe problematic behaviors are cleverness challenges and if you are smart and work with the birds' natural wants and desires you can bring about change. Like Dan says birds, like humans, have good and bad days. For example our newest parrot is a Panama Amazon who has one extremely loud and ear-piercing sound that he makes periodically. I believe it is an attention-getting sound, and yes, maybe he got someone to run over and yell at him for doing it before, and that got the desired attention, even if it was negative attention. My plan is to soundlessly walk out of the room if he screams and to shower him with attention when he say "words" which he does. Food is also a good motivator.
My quaker can be loud at times, but I think it is a joyful noise where he is announcing his quakerness. Birds are the pets most like people where you will have squabbles, as well as, joyful episodes. I wouldn't change one thing about them or my experience with them.