I have found most of the legends of guns that blow up, are just legend. That being said, while I have more faith in these guns than MichaelP, his points are still valid. On the other hand, a brand new rifle can blow up in your face too.
It seems to me though that every person I know who blew up a gun either talked it up into being more of a disaster than it really was....and/or....did something extremely stupid that caused the destruction.
I also recently talked to a guy who swore that on Eeeji Jeema (Iwo Jima) "They was dead Japs all over the place what had the bolt of them junk rifles sticking out of they head where they blowed up on em". When dealing with scientificated evidence like that, it is easy to see why there is such a phobia against shooting Jap rifles.
I own firearms not to fight against my government, but to ensure I will not have to.