I have just included the following paragraphs in my pre-visit communiqué with guests, after our current guests have managed to detach the stair handrail from the wall.
'..Unfortunately we have had two issues with damage to the stair handrail which causes us to include the following paragraphs:
1) The stairs are quite steep and the handrail is an important safety feature. It has been fitted securely to the wall via 4 x brackets each secured by 3 x 2" screws and wall plugs into plaster work and brick. If used in a normal manner the handrail will provide perfectly adequate support and balance whilst climbing or descending the stairs.
2) It is NOT designed to be yanked on, pulled on or hung from like a piece of gym equipment. Under such circumstances it may detach from the wall. Guests using the handrail in an inappropriate manner resulting in detachment of the handrail will be charged a re-fixing fee of £250.00...'
2 x cases now, where guests have detached the handrail from the wall - 1 x the bottom section and 1 x the top section. Pulling 3 x 2" screws from a wall is not so hard if you lever the handrail in a lateral fashion. Even then, it would require some weight behind it. In normal usage the stress on a handrail would be downwards and/or longitudinal.
It's the only anti-dickhead policy I can think of...