I was trying to break my smeltification unit, but it wouldn't start, so I decided to repair it a little to see if that'd work. I started the repair, but I couldn't stop it because the X was off the side of the screen and was not clickable (I was way on the right-hand side of the street).
It was repaired to 100% and I couldn't do anything about. Then I shouted ARGH! a few times.