Lots of old ladies alone in their apartments or houses feel vulnerable and they are. Imagine maybe they could feel more secure if.... On the back of their front foor is a device that - if someone makes a commotion at the door, loud knocking or pushing - triggers a tape recordering of a large dog growling ferociously. Could help, if just outside the door on the porch or the landing there was a pretty large, empty of course, dog food bowl with MAX written on the side.
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