I also will explain that we would MUCH rather have someone call a STOP because they think something's wrong when it isn't than have them not call it when something is wrong because they're not sure. We're not going to be mad as long as it's in good faith. The other big one (more for when we're doing a roof) is if I (and whoever else is in charge on-site) tell you to do something RIGHT NOW, do it. If I say cut loose that tarp right now, I don't mean when you get done with lunch or when it seems like a problem to you. Also (thank goodness I've never had to do this) if tell you to get away right now (or RUN) I mean it, there may not be time for a discussion.