My main pet peeve is guitar-smashing. Rich, overpriveleged douche move times infinity. That includes the old classic-rock and metal legends who did it in the first place. I hated it then, and I hate it now. I'd rather watch Yngwie Malmsteen give an interview from his home studio room filled to the ceiling with unused prize vintage Stratocasters all collecting dust unused, than to watch some idiot destroy one low-end instrument violently. Hate it, hate it, hate it.