I got an email today from a guy who teaches you how to teach your bird tricks and he was talking about his Cockatoo, Linus, ususally was very very sweet and just suddenly one day waas a holy terror. This is what they figured out.

(Sorry the pic is sideways)

"So I tell you this because it could save you a lot of grief. If
your bird's behavior has suddenly switched around, think back
and try to remember what you changed in your bird's surround-
ings around the same time he started biting or acting differently.
Then begin changing things around, one at a time, testing each
change to see if your bird responds to that change. Believe me,
he'll let you know when you've 'corrected' this invasion into his
little world! Move sofas, TV's, plants, or even a new center-
piece on a coffee table. Try to think if a certain color is bothering
your bird. It could very well be that the fix to your problem is as
simple as moving your sofa or not wearing a certain piece
of clothing."

These guys found out that a new black curtain near the cage was what bothered Linus. So our mission, should we decide to accept it, is to find out why Sammy has been a little booger for the past few mornings. This morning I thought Paul and Sammy were going to kill each other. Paul was dressed to go out of town and was hot from loading his car and Sammy wanted to be on his shoulder. Paul had to put one of my coats around his shoulders because Sammy couldn't hang on to his cotton shirt. This lasted about 10 seconds and Paul became extremely hot and Sammy would not get down. He was biting and biting hard both Paul and me. Paul yelled loudly and Sammy finally got on his perch. I was thinking to myself, "maybe Sam will like me better now" hahaha