I once thought I might have been wrong, .....but I was mistakin'...
Seriously though, I don't think I want to make a LOOONG laundry list of stupid herp-related mistakes I have made over the course of 46 years of owning them, because there have been many..LOL!
Back around 1969 or so, I left a mouse in with a killer 5 foot Indigo I had and I figured it would only be a matter of a minute or two before he caught it and that would be that. Well, I come back a couple hours later, and the freakin mouse had eaten the Indigo's entire length of it's tail completely down to the bare vertebrae all the way from the tip to the cloaca!!!. It was one of the grossest things I ever saw!. Well, the snake died several days to a week or so later even though me and my mom kept the tail dressed with antibiotic ointment. What a horrible death that had to have been.....I was sad as all hell after this because my once noble beast Indigo perished because of a STUPID mistake like that. Needless to say, from that day forward I NEVER left a live rodent in with a snake unattended......NEVER!!, and I see and hear about these horror stories all the time to this very day.
I think the latest stupid mistake was probably killing one of my original het anery Hondos I got from Brian Barczyk (BHB) back in 1996. About a year or two ago, I went to soak the ol' girl in a pillow case to help get some shed off that was stuck pretty good on her. Knowing better than to do this, I went ahead and put her in the bag and tighed a knot in it, then gently set the pillow case in a very shallow container of water, maybe only 1/2 to 3/4 of an inch. Well, I came back a few hours later, opened the bag and she was dead as a door nail. See, the very tight cloth weave of the bag got so saturated with water as she struggled around and pushed the bag around in the water, that the water completely saturated into the cloth and prevented any air from getting into the bag and she suffocated or even possibly drowned while trying to escape the bag.
Needless to say, I was really bummed at the loss of one of the only original BHB anery line animals left in the hobby. I felt like a real idiot because I knew of this very thing happening before too...
About five or six years ago I purposely left the lid off of a deli cup of a tiny ghost Honduran milk hatchling as to not spook it while it was finally feeding on it's own, then I slowly backed away and went to do something else for ONLY a couple minutes while it worked the pinkie down, then I would come right back and snap the lid on and all is well. Well, not quite. I forgot to ever come back, and the freakin ghost Hondo was gone forever...LOL! It had countless THOUSANDS of places to hide and I tore the place apart as best I could to no avail cursing like a sailor most of the time I was searching and tearing things apart. That tiny hatchling eventually crawled along the wall and found the two big gaps in the side of the huge garage door towards the floor and was on it's own forever!. Well, at least I gave it a small head start on life I guess...LOL!......geeeez!
Anyway, I could go on and on, but I'd rather not..HAHA!!..

Bottom line is that anyone who has had snakes long enough has made quite a few stupid mistakes.
Oh!!...I have also let snakes crawl around in my back yard while I cleaned the leaves out of the swimming pool many years ago, glancing over at it from time to time as he slowly cruised the grass, and pooped, etc..So I heard the phone ring inside the house and ran in as fast as I could to answer it, then planned to keep the call to only a few seconds and I would run back out and it would still be about where I left it.. Well, I got talking about something very important and got totally side-tracked regarding the snake that was still outside. Several hours later I go into the snake room and notice the lid off of my huge "sunglow" cornsnake. When I realized what I just did, it hit me like a freakin ton of bricks and I felt my heart sink down like a big freight elevator. Well, it was now totally dark outside, and I freaked and got the flash light and searched everywhere in my back yard until eventually I had to come to grips that this awesome specimen was indeed gone forever, and I never saw it again. This was around 1990-91.
Yes, I will stop this time, but there were many dumb mistakes made over the years..............
~Doug

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"a snake in the grass is a GOOD thing" 

serpentinespecialties.webs.com

"some are just born to troll and roll"