I'm somewhat with you on that. I'll keep and store superworms, mealworms, things like that. Oh, and nightcrawlers. Crickets and roaches are never allowed to enter my house though.OH! Now I understand why you weren't into blue tongue skinks
Most lizards are gentle, and most of larger lizards and monitors are definitely not in any hurry...
But that's okay, all reptiles are unique, and every body has their 'own'
The thing I like to look for is the diet. I am NOT a fan of feeding and storing (UGH.) live bugs, like roaches and crickets, so being herbivorous (or pretty freaking close) does it in for me.