I have a couple of questions for you guys...

I have owned a corn snake for a few years now and recently a couple years ago I got my first BP and now own 20. Only twice have I been bitten. The first time was when I was moving my kingpin into his new enclosure after bringing him home from the expo and then today my very small one year old normal female bit me. I usually know when I am in danger of an aggression, fear, stress or food response bite. But why else would a snake bite you? While holding my normal she seemed fine but kept staring at my hand. No coil, no open mouth, she was tasting the air, normal stuff besides the staring. When I moved my hand, she would slowly search for it again. I repositioned her from one hand to another and she got really close (like have a centimeter) from my finger and just bite it. After that she kept looking at my hands again. I put her back quickly (no one likes to get bitten). I only had her out for about 2 minutes. She has never bite me before although I only got her about a month and half ago. I have never seen this before and have no clue why she would bite me. Anyone else experience this behavior before? Is is aggression, hunger?

Also, I have had a queen bee for about a year now. I got her when she was so tiny. She is a year old now and growing like a weed. She has always been a great eater and super friendly but lately, whenever I open her cage, she launches for me. On feeding day, she doesn't strike then coil the F/T rat, she strikes at it defensively. She now only eats it if I leave it on the floor of her tub. If I am holding it up for her (with tongs) she just repeatedly strikes it. It is so weird. Once I get her out of the tub, she is as tame as you can get them. Can anyone explain this behavior as well? This aggression seemed to change when I switched them to aspen bedding. I used to use newpaper where they could crawl under. The tubs are too small to put a hide in but I am wondering if this may have something to do with it? What do you guys think?