i think i know what the OP is talking about, however i DO live in a really old home & could easily blame older hardware at the outlet. but i simply think its a side effect of the really cool looking charger. i havent checked, but if you compare the lengths of the prongs on the charger(flush with the back of it & out) to something else you've been using in the same outlet, are they the same length?
for myself i've been using it for quite some time & i just have to be extra careful about tugging on the cable knowing it could come out of the wall. also if we are all talkn about the same one, its has some sort of LED or light on the front showing it should be fine right? so maybe get in the habit of checking before u fall asleep
if you are talkn about the new small one that came with the evo, i'm not sure what to say. besides comparing the length of prongs on your different devices, i'm at a loss.
there are always extension cables or power/surge strip scenarios as well as what thebrain mentioned of bending the prongs so they snag a bit more