I like mechs and have several, I was scared to death of them at first, but I’ve had no trouble with them. Make sure they’re in good shape, the button is working, always use a good battery and always check the wrap and always check the 510 on the atty (most of mine are hybrids). I’ve never had one auto fire. And I always make sure the coil is in the safe zone and triple check it on a regulated mod.
When the Abyss malfunctioned, I knew it’s supposed to have a 10 second cut off, but if the electronics of the firing mechanism malfunctioned, I figured the cut off could, too. I usually hit maybe 3 seconds, and it fired for 2-3 more before I realized, so I figured I had enough time to get the battery cap off. If I’d walked into a room to find it firing I wouldn’t have known how long it had been doing that, and I wouldn’t have risked it. Stand back, see what happens.
When this topic comes up, I’m reminded of why I’m not ready for an electric car. I’d be far too nervous sitting on 17,000 batteries when everyone around me thinks we’re playing bumper cars and I don’t care how well protected they say they are.