This Giles cartoon, commissioned for a knees up at Cambridge University in 1967, shows Grandma cutting a rug, or a gravel path at least, with R.A. Butler, the Master of Trinity Hall (and not Stephen Fry, though it could be him). Source is Francis Pryor's blog. Pryor is one of the archaeologists of Time Team, and a prolific author, and his blog posts often offer a long story you can sometimes sense has been told before over a pint, about archaeology, gardening, or sheepfarming, or a combination of the three. I did not know he worked for the Royal Ontario Museum in the Seventies. You can find most of Time Team on Youtube these days. It's tempting to score him on how quickly he brings out the word ritual each episode; but honestly the rest of them call high status faster.