A fatherfucker.

Sisterfucker?

Yuck.

Dave, from eight grade — the guy who sold you a dime bag for $25.

Bob, from the office. Pretty sure he surreptitiously farts in the coffee room, when he's unloosing another smug packet of Splenda.

Mobutu Sese Seko.

The UN, when it failed to help in Rwanda.

John Kerry, for — y'know, windsurfing. That dick.

Sharks.

A doctor. They have bad handwriting but are wealthy. Jerks.

Rebecca West. Her collected stories: Way too heavy to take on subway.

Charles Bronson.

Martha Washington.

Others.

Just keep trying!