My friend has very kindly offered to give me her DD's old buggy - not used by her any more. It came up in conversation that I was about to buy one new and she said they still had theirs. Now it's a very smart and expensive make, and I know she could have sold it online. She's insisting she won't take any money for it though. What should I do? (I know she's struggling financially at the moment too and she's a single mum).