Hypochondriacs.
Egotistics-know-it-all whose every conversation undoubtedly starts with “I.”
Lies that become “facts”... and I don't mean evidence of one particular case, which I never denied, but the non-existent evidence of gossip and innuendo.
And of course, immaturity.
Men who abuse women and vice versa.
People taking the Lord's Name in vain.
People who curse casually or even deliberatly to provoke.
Ditto on profane bumper stickers and attire.
Males who impregnate females without first marrying them.
Women who fall for one-night stand types.