twelve
o'clock
That is wot I have come to say . There 's someone else a thief in your house , sir , but it aint my girl . '' `` I am inclined to agree with you , '' said Shaw , in a thoughtful voice , `` and I may as well say now that I regret having acted on the impulse of the moment . The facts of the case are these : Between eleven and twelve o'clock to-day , one of my best customers came here and asked me to give him change for a five-pound note . I went to the till and did so , taking out four sovereigns and a sovereign 's worth of silver , and dropped the five-pound note into the till in exchange . In my hurry I left the key in the till . Miss Reed was standing close to me , waiting to ask me a question , while I was attending to my customer .