Yeah, agree with all of that suave, especially the road back to the New Inn (where I once nearly killed a cyclist with no friggin' lights on his bike!).
I take the point about a new entrance at the Lion but why not have locks on the inner doors leading into the upper and lower bars? Going through the small porch (at the front of the pub) the door on the right could be locked after hours but guests could still access their rooms by the door on the left. I don't think there is a door leading from the little snug into the upper bar and restaurant but surely one could be fitted and locked at night.
Maybe scousemaiden could fill us in on the problem. The Red Lion is a great pub though and I've spent many happy hours there and met some great people :-)