What makes you bad-mannered? Do you want to see people being rude and unrefined? Or see folks being discourteous, impertinent, uncouth, brazen, raunchy, loutish, churlish, boorish, ungracious, cheeky, impudent, impolite, insolent, loud-mouthed, coarse, tacky, vulgar, bawdy, cheap, disrespectful, ill-bred, rough, charmless, indelicate, graceless, insipid, sophomoric, undignified, crummy, chintzy, inferior, uncultured, barbaric, tasteless, cheesy, or...