''I'm at the end of my fucking patience with you'' I said to the guy as he came through the access door from the roof.

He looked sheepish.

''Now get in there'' I gestured to the elavator '' I'm taking you to the lobby where you will sit and not move, and not talk to anybody !!''.

After I had deposited him in the lobby under the careful watch of the Duty Manager I went to the sixth floor and knocked on the door of his wife.

''What's he done now...?'' she said, standing before me in a towel.

''Well, he was on the roof of the hotel ready to jump'' I said.

She rolled her eyes.

It was going to be a longer night than I thought.