The *only* time Xander has ever bit me was the time he climbed up to my shoulder and first tried to eat my shirt, them my bandana, and finally, my ear. I had some fruit scented body spray on, and we think it confused him. He let go right away, but it sure did bleed!
He also ate one of my birds' down feathers a few weeks ago. It was on the floor, and I thought he would just leave it alone. Nope! Lick, and it was in his mouth. I tried to get it out, but he ran away. By the time I caught up with him, the feather had disappeared down his throat.
He's just fine, though 
Alika
1.0 green ig (2 yrs old)
0.1 cockatiel (1 yr old)
1.0 senegal parrot (8 yrs old)
0.1 blue-fronted amazon (16 yrs old)
0.0.1 red belly piranha
0.0.8 tropical fish