Edna was skeptical but finally relented.
When the PowerVacBot899S arrived, Ed read the instructions carefully, charged it, made a test run, and set the timer to auto mode.
Ed and Edna returned to their house several hours later to find the unit had run its course as scheduled. Tracks on the carpeting revealed it had covered the entire floor. Perfect, a relieved Ed thought.
Edna inspected the bin but found it completely free of debris.
“So, Mr. Technology, where’s the dirt?”
Ed looked puzzled, scratched his head and thought for a second. “Wow,” he said. “It even disintegrated the grime!”