Passenger Briefings
Shaggy Sheep Driver's post on the old/bold pilots thread made me think we could have quite a useful discussion on what to tell people before you take them flying. I used to just give them a bit of a safety briefing, but I seem to keep adding things when I find out they're needed. For instance, I now tell them about check lists, since someone pointed out to me that passengers can think your use of one means you don't know what you're doing. I also tell them not to talk to me during takoff and landing, though they invariably forget that one. And I make sure they know where to get an air sickness bag, since one disaster during a difficult crosswind landing - I won't go into more detail on that one.
What do the rest of you do?