I have my pacman cage side by side with my guinea pigs cage. while my guinea pig named "Ziggy Stardust" was very curious and looking at my pacman named "Beast" he lunged at the glass getting a tongue full of epic fail. Ziggy Stardust squeaked and ran back into his little house shaking. Beast sure does live up to his name by trying to eat anything that moves! Just thought I would share an off topic story that may humor you.