Yesterday at work was one of those days. One of those days when you end up messing up your experiments so badly that in a few hours you set yourself back by a week or more. When you would be further ahead if you just hadn't shown up. When you just have to throw your hands up in the air and say "Okay, Thursday, you win" and leave before you ruin anything else.
Today I'm dealing with the aftermath. Deciding what can be saved and what has to be thrown out and redone. It's my least favorite kind of science day.