last night i took aelfric out for play. his energy and swiftness has returned and i was not really concerning myself with his health anymore, but at one point he wrapped his tail around my finger and dangled himself freely for a minute and then his mouth opened so i gave him my other hand and he slithered up my wrist slowly and opened his mouth wide two more times. my first thought...regurgitation inevitable, PUT HIM BACK. i put him back in his enclosure and monitored him for a while and nothing came up. i decided to put him in his feeding container with a paper towel as bedding, a little water bowl and a toilet paper roll. i was gonna leave him in it over night, but after about an hour i concluded that it might stress him more so i replaced him in his regular tank. my reason for quarantining him was so i'd see the mouse sooner if it came up, he likes to dig into the substrate. as far as i can tell he never regurgitated a mouse. he ate on monday and was not handled until yesterday, he should eat tonight, but i might hold off. the question is...is there another reason why a snake would open wide its mouth other than to adjust it's jaw soon after eating or to vomit?