In message , at 19:00:57 on Thu,
15 Oct 2009, Neil Williams remarked:
Megatrain don't do seat reservations.

They used to do "carriage reservations" though.

No - the carriage wasn't reserved. Megatrain passengers had to sit
there,

Amounts to the same thing.

but nothing said that other passengers couldn't.

That's an implementation bug.
--
Roland Perry