1. When the DM says "The corridor ends in a thick cloud of mist", and adds out-of-character that the map ends there, DO NOT insist on going into the mist.
2. When, after insisting on entering the cloud of mist that the DM described filling the end of the corridor where the map ends, DO NOT ignore the red octagon with white runes that spell S-T-O-P.
3. When, as a result of breaking rules 1 and 2, you find yourself in Ravenloft and the people run in fear from the "pointy-eared freak" (the elf) in your party, DO NOT cast Fly and begin fireballing the village from the air "because they know more than they're telling, but they're going to tell us one way or another".
4. When, after violating rules 1-3 so far, you find yourself having earned enough Dark Powers attention to be half-way to having a new Domain created just for you (and it only took 30 minutes) ... never mind; they did THAT, too.