People who own treadmills they use once a week and then bitch they don't lose weight.

Yo-yos that do all the work for you.

Christian vs. Atheist battles that rage on for weeks.

90% of the Internet saying they're writing a book, but when I ask them to show me what they've got they say "Oh, well, nothing, but it's in my head" and continue to say so for the rest of their life.