My sister was accompanying my brother in law on a business trip on her first BA F flight a good few years ago. On arrival she draped the blankets over her arm and at the door the FA told her that she wasn’t allowed to take them with her to which my sister rather sheepishly replied ‘I thought they were included in the price’. The FA saw her embarrassment and said she could keep one as a souvenir.^

I keep reminding her of it as she is a bit of a Hyacinth Bucket at times.