Diana on egotism

In her book 'Behind Closed Dors', Diana talks about egotism and one rare incident where she was guilty of it. She was invited to a garden fete, for which she'd be paid a small fee. She took her Husband, Alan Lake and their son, Jason along too. They were having a nice time and Diana was centre of attention, having her photograph taken everywhere and people making nice comments. In her words, she was 'wallowing in supreme egotism'. She was making a speech when Jason butted in with a comment of 'Mummy....how much are you being paid for this?'.
No sooner had she recovered from this embarrassment, a woman rushed out from the crowd waving a piece of paper for Diana to sign. She exclaimed "I knew it must have been you Diana, because I recognise your husband!"