There was a stir in the audience. He ignored it. "I knew that many criminals are traced by laboratory analysis of an object or objects, and I took elaborate precautions against that danger. Needing a piece of cord, I spent many hours reflecting on the safest method of getting one. My home was in Scarsdale, with a yard and a garage, and of course there were several kinds of cord around the place that would have served, but this must be absolutely untraceable. I solved the problem ingeniously, I think. I took the Broadway subway to the end of the line and went for a walk. Within half an hour I had spied two or three that would have been all right, but I was particular. The one I selected was at the edge of a vacant lot not far from the sidewalk-a piece of clothesline about three feet long. There was no passer-by within a hundred paces, but I was careful. I stooped to tie a shoelace, and when I straightened up the cord was coiled tightly in my hand."
Viola Duday demanded, "Are you inventing this, Bernie?"
"No, Vi, this happened. I stuffed the cord in my pocket immediately and left it there until I was at home alone in my bedroom with the door locked. Then I examined it and was pleased to find that though it was very dirty and worn some it was quite sound. I went to the bathroom and washed it well in soapy water and rinsed it, but was then confronted with a problem. Where could I leave it to dry? Of course not where there was the slightest risk of its being seen by one of my two servants or by one of my guests who were coming to dinner, and I didn't want to lock it in a drawer, wet. I didn't like the idea of locking it in a drawer at all. So, after taking a shower, I tied the cord around my waist before dressing for dinner. I was quite uncomfortable with that cord around me next to my skin, but I wouldn't have been comfortable if I had put it anywhere else.