I never experienced mouth infections thanks to this behavior. A healthy snake is strong enough to get no problems of a biting incident.
Of course I never leave them unattended during the meal. Every now and then I lay my camera next to the terrarium, because I know they will start fooling around.
The juveniles of atratus often also behave like pigs, as well as hammondii and sirtalis black.
Most of the time eques scotti and eques cuitzeoensis, as well as tetrataenia, melanogaster and cyrtopsis ocellatus eat like well mannered ladies