Hah. I did tech for a couple of plays back in high school and one at my college.

While not tech week fun, I remember one particular play during high school where we had done teasers all day, then left and came back to get ready for opening night... and the front half of our lights wouldn't work. The system had decided to go out. I was working the lightboard for that show, so I had a couple people over my shoulder playing with our remaining lights to create similar effects. They eventually replaced our system with the one we used in our black box... which didn't allow our audience lighting to work at all. Oh, that first night was hell...