NFD: Was that "were onto something" or "were on something"?

But it's one of the funniest ideas I have heard in a long-time. Don't give any more away, Richard Branson may be taking notes!

The toilets could be a problem though, for authenticiy, you would have to have only two toilets for every 200 clients.

And what about FA's rushing 'round with trolleys bashing into your elbows and heels?
MF