This thread has been a real eye opener for me. Never having joined a club or had any dealings with one, I had a very different perspective, and the one I would assume most of the rest of the non-club member public shares.
When I walk into a train show or event with trains set up somewhere I had always thought the main purpose was for the public to be engaged, to ask questions, perhaps to get some time on the controls, and at the very least to draw more people into the hobby. This thread has shown me why it seemed so odd that the folks running the trains are always so grumpy and stand-offish. They are not there as ambassadors of the hobby but to run their own trains in their allotted time window. Everything makes much more sense now.
Not to be totally flippant here, but in all honesty I thought the purpose of portable, modular, layouts was to get trains in front of the public, and that clubs would meet at members layouts or construct their own club layout for club activities out of the public.
When it comes to who and how often I would let folks use a layout, any member of the public would be invited and welcomed to bring their trains from home. I may be a bit skeptical of letting others run my stuff, but there is not much that can be hurt letting anyone run their own. Dealers, at my supposed club layout, would be allowed only if there was nothing else going on at the time. On the other hand, as a dealer I think it would be nice for the show to provide a 4x8 sheet of plywood with an oval of track for testing, something I don't know why no one thought of before.
Do you even have any trains????
I'm not quite sure how to respond to this, and unsure what difference if I had never seen a train, real or model, before in my life. Actually that is the entire point, people that are not in clubs and may just be browsing by percieve these layouts as places to come and learn about them or talk to folks that could get them involved. A layout at a public place should be manned by folk that assume the visitor doesn't own any trains.
As for private events, that is something else entirely, and of course you can organize such a meet in any way you like, but I think using public space at an event as your private time is quite rude to the folk that pay money to get in the door at a show.
SJC,
My tone here is more directed to the folks that are not into talking to people or, with supervision, putting the controls in the hands of another. You and your club seem to do a wonderful job, and I've read a number f post where you describe such things.
Oh, and to answer the question, No, I do not own any trains. I do own a fair number of toy trains, however. Nothing like some of the fantastic collections some folks here have, but a dozen locomotives, maybe 100 pieces of rolling stock, and enough track and switches for everything to be on the layout (currently decommissioned due to moving) at once should be considered 'some trains.'