"A Bad Night" is a short story by E. W. Hornung, and features the gentleman thief A. J. Raffles, and his companion and biographer, Bunny Manders.

Bunny insists on taking the burglary job himself, so that Raffles can be free to serve his country.

The young man at the window, who is the bride-to-be's asthmatic brother Mr. Medlicott, believes Bunny, and lets him into the house.

Bunny begins reluctantly to sympathize with Medlicott, and helps to keep the man's asthma pacified.

Downstairs, Bunny finds and quickly knocks out the burglar, only to realize afterward in anguish and bitterness that it is Raffles in disguise.

Bunny only learns later that Medlicott had been unable to reach the policeman, and eventually had to struggle home.