Fish_Whisperer:Perfect, Jason! I guess using your buddy's wetsuit or drysuit for evacuating the bowels is also the proper procedure in those circumstances. (Hopefully, they're not IN it at the time, or else they might be tempted to ventilate you with their dive knife....)
Let's not be silly about this, as far as #2 goes, your buddy should only be involved if you run out of the TP that you carry in your emergency pocket with your whistle, mirror, etc. That's why you should always stay close to your buddy, air and TP...
Jason