"Can I try a bit of your rhubarb Mummy?" said OS today as I was tucking into a bowlful for pudding.
"No" says I, "you don't like it, it would be a waste".
"Can I try a bit?" says YS. "No, I'm afraid not, I don't want it wasted it's just too good to waste".
"Well if you are sure you won't waste it you could have a little bit..."
Two screwed up faces and silence and then a smile from OS.
"Actually it's really nice!"
YS screwed up his face some more, "Can I try some tommorrow - I might like it then?"
OK you can't win them all...