'I don't.'

He took out his cigarette case. He was feeling a great deal more strung-up and nervous than he would have had the others suspect. He had had a moment of very swift thinking before he had decided to treat that ugly little pistol in a spirit of contempt. Its production had given him a decided shock, and now he was suffering from reaction. As a consequence, because his nerves were strained, he lit his cigarette very languidly, very carefully, and with an offensive superiority which was to Mr Birdsey the last straw.

These things are matters of an instant. Only an infinitesimal fraction of time elapsed between the spectacle of Mr Birdsey, indignant but inactive, and Mr Birdsey berserk, seeing red, frankly and undisguisedly running amok. The transformation took place in the space of time required for the lighting of a match.

Even as the match gave out its flame, Mr Birdsey sprang.

Aeons before, when the young blood ran swiftly in his veins and life was all before him, Mr Birdsey had played football. Once a footballer, always a potential footballer, even to the grave. Time had removed the flying tackle as a factor in Mr Birdsey's life. Wrath brought it back. He dived at young Mr Waterall's neatly trousered legs as he had dived at other legs, less neatly trousered, thirty years ago. They crashed to the floor together; and with the crash came Mr Birdsey's shout:

'Run! Run, you fool! Run!'

And, even as he clung to his man, breathless, bruised, feeling as if all the world had dissolved in one vast explosion of dynamite, the door opened, banged to, and feet fled down the passage.

Mr Birdsey disentangled himself, and rose painfully. The shock had brought him to himself. He was no longer berserk. He was a middle-aged gentleman of high respectability who had been behaving in a very peculiar way.

Waterall, flushed and dishevelled, glared at him speechlessly. He gulped. 'Are you crazy?'

Mr Birdsey tested gingerly the mechanism of a leg which lay under suspicion of being broken. Relieved, he put his foot to the ground again. He shook his head at Waterall. He was slightly crumpled, but he achieved a manner of dignified reproof.