Once when we stayed we didn't realise that the Bistro was closed for the evening and we didn't have any formal wear with us for the restaurant.
They said that it wasn't a problem and we could dine where we like but we said that we wouldn't be comfortable in our scruffs and could we just have room service.
As a gesture they asked us if they could fetch a table from the restaurant to our suite and we could dine of the fine dining menu in our room! They even chucked in some freebies. The best thing was we didn't even complain!
Oh and the waiter was the restaturant manager!