I have many pets… pet peeves, that is. Maybe too many. One of my favorite pets is the "selfish parker." They park as if only their own needs are important. Those are the folks who park such that they occupy two spaces. They're also the ones who park in the lined area between two handicapped parking slots not thinking or caring about what they've done. They'd probably answer, "well, I'm not parking in a handicapped space." No, you're actually blocking wheelchair access for two handicapped spaces. Then there are jokers like the one pictured below. The zone is painted with bright yellow cross-hatch marks… it must mean it's reserved for them! I've only smeared the license plate to protect me.
PhotonStopper 
Hah. Pet peeve from back in the UK – people who pull up their cars in bus stops to nip into a nearby store. Obviously they don't use the front or the back of the bus stop to leave as much room for the bus as possible – oh, no. Right in the middle. Maximum obstruction.Makes you wonder how often these people have replaced slashed tires, haha.