People who own cars with an insignia cover for the boot keyhole, but leave the cover flicked up ALL THE TIME
Animals.

People who say, 'Oh I'm SOOO jealous' when you tell them you're going on holiday
Apart from the fact that the reason I'm going on holiday is that I worked hard and saved up money, which you could quite reasonably do too, you're not jealous, you're envious. Envy is wanting something someone else has, jealousy is not wanting someone else to have what you've got.

Enough now.