I only have 1 ground rule, and that is to be honest. One very important thing I found out is to ask and disclose any medical problems you might have. I found this one out the hard way. I had a real sleepless night once making sure my partner was gonna keep breathing. Nothing against him, he didnt know he might have a problem, but this happened to him before and he played it off I guess.
Another is to be honest about your limitations. Me, I hate heights and have frozen up a few times while goat hunting. I tell that to everybody I hunt with, so they will be ready for anything. I still go after goats and sheep, I just dont look down so much