Another "non-grammar" one:
I just saw an old friend's page. This guy is in the same industry and is extremely intelligent. However, he's changed his "info" to read:
Activities: XYZ Fraternity, Leadership Council, Honors Club, and [girlfriend]
Favorite Music: [girlfriend]
Favorite Movies: [girlfriend]
Favorite Books: [girlfriend]
Favorite Quotes: [girlfriend]
About Me: [girlfriend]
Seriously dude?