Anyway, back to the point of the thread, this is not an altogether uncommon thing for people to say. I have heard Metallica compared to Nevermore, Overkill, In Flames, etc. Of course, all of these people making these comparisons knew absolutely nothing about metal and not much about music in general. As someone stated before, if people don't really understand it, they just hear loud music and heavy guitars. Since their mind cannot sort out the vast differences in the bands, they simply think of the most popular metal band in existence(Metallica) and say that that is what it sounds like. Yeah I get pissed off too, but it's not really their fault.