Over 40 years ago, I was pushing my daughter in her buggy down the street when a chap, about 60 and his 2 lady companions were walking towards me. He was explaining something in great detail and his companions were hanging on his every word. As he passed me I overheard him say " So I told them, oh no, it's not for me it's for my tomatoes". I actually stopped dead in the street and nearly ran after them to ask, what was it that wasn't for you but for your tomatoes. I regret I never did as it has been a puzzle constantly since. Gransnetters have you any ideas?