My Grandad met Donald

My Grandad met Donald, this was about 30 years ago when Donald was promoting some movie in London. My Grandad, a very warm Country Bumpkin type, was working around the area for something and just happened to see Donald Sutherland at a Pub in the city. I think my Grandad recognised him and offered to buy him a drink, and Donald turned around, looked at my G'Dad like crap on his shoe, and said that 'You should turn around, walk away and talk to someone who gives a shit'. My Grandad was one of the most conscientious and thoughtful people around who never said a bad word about anyone, but he spoke this story till he passed away, 14 years ago.