I once purchased a Traditions inline. As I remember it was an E bolt but I will not swear to that anymore. It came from Sportsmans Guide. And when you would cock the rifle, even with the safety engaged.. it would suddenly and for not reason.. like leaning in a corner.. just fire. Thank goodness I was testing it empty when it acted up. So I took it outside, loaded it.. set it in the gun rest.. turned to take my gloves off, not even looking at it.. and it went off. It was immediately cleaned and re-boxed.
Traditions did not want it, so Sportsman's Guide took it back no questions asked and refunded my money (all but shipping of course). I vowed never to purchase a Traditions rifle after that. But have bought several Traditional rifle since, and they work fine.
I really don't know what would make a rifle AD. If it is not something mechanical, then it has to be operator error. And that's the worst, as it should have been prevented.
I once fell off a steep embankment with a T/C Renegade in my hands on half cock. Broke the stock on the rifle.. but the rifle never went off.