When I'm lawyering, the very worst part of my job is checking citations and cross references. So. Boring. And yet ... so necessary.
The worst part of trying to be a writer is querying. Hands down.
The worst part of owning a house is trying to figure out where I've gone wrong in my attempts to winterize.
The worst part of having Spencer pie around is scooping out his food in the morning. (Seriously, you thought it was going to be picking up poop, am I right? That is pretty bad, but those bags are easily disposed of. The smell of puppy chow lingers on your hands even after you've washed them.)
Indulge the grumpers with me, people -- what are the worst parts of the things you do? Never fear, we can talk about the best parts of things another day.