WHile I am no expert and have a few little follies, all I can add to the list is being lax with changing bedding every few months like I am supposed to, sometimes I've left it a little longer than that, occaisionally Ive left water to be changed for a week instead of changing it every 2nd or 3rd day. What else? Not heating enclosures enough, my Honey Jungle stopped eating for almost 2 months last year because her enclosure wasn't hot enough< I'm trying not to make the same mistake with my Darwins. Not wearing gloves when handling new snakes, had my hand mauled one time when I got my Diamond girl. I didn't blame her, she was new and hungry and could smell the feed tub before I could get her completely in there. Not taking animals to the vet as often as I should, two are sick at the moment, not my fault though. Not serious but I got them there in time I guess, not cheap either, especially when all 9 of my girls are due for checkups. People look at you weirdly when you are carrying a pile of tubs and get freaked out when they realise what you are carrying. Asking too many questions got me banned from another snake forum, God only knows why. Some douche there claimed to the admins I was someone else when I wasn't, even offered to show them my ID or have one of them call me to see I was definitely female and not some male troll. I've left enclosures open plenty of times, but for some reason my girls just stay in there, not that they could get far, they are all kept in a seperate room of the house, so if they do get out, can't wander. I've been told never to handle a snakes heads, but have done so many times to my girls to get them used to being touched there. Most of them let me do a light but firm hold with my fingers on the top of the head and under the bottom of the jaw with my forefinger and thumb. Most of my follies happened in the first few months or so, not much happening lately, but I am coming up on my first year of snake ownership. Cheers to no serious accidents!