Some observations on this thread:

1. Rule 1. It doesn't have to make sense. Don't ever forget it.

2. Maybe Mark's "common purpose" was to go flying. Does he
have to have a particular place in mind as a destination
to acheive his purpose?

3. Such trips should always be "Dual Instruction" when
possible.

4. This was a pretty sane debate, compared to, for example
rec.music.opera. Over there, at least 3/4 of the messages
would diss the combatants sexual orientation!!

Bill Hale