It's funny you posted this as I was thinking about this recently as I bought my second BP recently. My first girl has always been really curious and unafraid of everything. But as soon as I got my second BP and put him in the rack below hers she immediately changed. Didn't really want me bothering her anymore and being really tense when I did get her out. It seems to have gone away as of last night though. I also wondered if weather could affect their behaviors though. She still eats everything I put in front of her, but I live in Indiana and our weather has been going crazy recently so I wondered if pressure changes or the sharp change from sunny and hot to snowing the next day could have been affecting her behavior too.