The other day my wife had our baby bearded dragon out, it bit her. At that moment my frill went crazy, hissing rubbing into the glass w/ frill open. The baby is in a 20 gallon that my frill can see. Ever since then I have noticed my frill hisses when the baby is fed. Is he really just taking up for my wife or could he of just noticed the guy. I know he is not scared as his svl is twice that of the baby.