They are the little robots taking north Leeds by storm as they trundle food across the city, dodging traffic and ne'er do wells who might try to stop them on their automated deliveries.
I didn't know anything about Co-Op's new 'Starship Food Delivery' robots until last week, when a flyer for the supermarket's three month trial dropped onto my doormat.
Naturally, among the pile of circulars for stairlifts, equity release and window cleaning, I didn't give it much of a second look.