Ouch lol. She is 5' if I remember right? If so a few chips of aspen wont hurt her. Its the babies that I would be careful of and not use big shaving aspen with them. Rosey has hissed at me a couple times when I grabbed her head to pick aspen out of her mouth while she is holding her rat but other than that, she is usually pretty good. Dottie doesn't seem to really care that much and Vicky is still fairly new so she isn't a big fan of it yet and hissed at me the last time I did it lol. Kind of cute having this little boa hiss at you with a mouthful of mouse. I pre kill all my rats when I bring them home so I kind of can avoid the whole mouthful of aspen deal.