I got it started & the old man expressed an unusual innterest. "That would be just right for your mum; for shopping etc" (never driven anything in her life).
"Kate come here & try this, it's just like riding a bike". Well, the poor woman panicked & just opened the throttle wider & wider. Over the flower bed, the rockery & finally embedded her & the bike in a bamboo hedge.
It was very quiet in the house for several days.