The *only* time I might consider something an accident is if there was a defect with the firearm itself, or the holster.
This is very true! Years ago there was a fellow at a MOC picnic on the west side of the state who carried a Springfield XD. It went off while he was making it ready for transport mode. IIRC, he was charged/ticketed but they were dismissed, due to his firearm being part of a very small batch under recall from Springfield Armory for potential to discharge while being unloaded. Stuff happens, and yes, manufactures screw up from time to time.
Food for thought ... always check your gun for manufactures recalls or "safety upgrades". Just had my 23 year old G17 "voluntarily factory upgraded" with a new FCG basically on Glock's dime. Why so long? Simply wasn't informed by Glock, as it was a voluntary program, hence no recall notice.
And no, I did not have the internet back in 1991! Lol, I don't think Glock had a website yet either, for that matter. Most PC's ran DOS back then and if you were lucky, had a 14.4k modem (think roughly 3 times slower than a old 56K modem, for those of you who know what a modem is/was). Gosh ...those were the days (not). History lesson concluded for the whipper snappers in the crowd.
A smart phone back then was: a payphone that knew the difference between quarters & washers! :p
http://en.m.wikipedia.org/wiki/Modem