There was a story in the paper about 'Lovely Rita', the meter maid. She's just retired as a traffic warden. The phrase 'meter maid' was so American that it appealed, and to me a 'maid' was always a little sexy thing: 'Meter maid. Hey, come and check my meter, baby.' I saw a bit of that, and then I saw that she looked like a 'military man'.
I remember one night just going for a walk and working on the words as I walked... It wasn't based on a real person but, as often happened, it was claimed by a girl called Rita [sic] who was a traffic warden who apparently did give me a ticket, so that made the newspapers. I think it was more a question of coincidence: anyone called Rita who gave me a ticket would naturally think, 'It's me!' I didn't think, Wow, that woman gave me a ticket, I'll write a song about her - never happened like that.
I used to try out funny things in odd moments and I discovered that by putting sticky tape over the capstan of a tape machine you could wobble the tape on the echo machine, because we used to delay the feed into the echo chamber by tape. So I suggested we did this using a piano sound. The Beatles themselves couldn't think what should go into the song's middle eight and they didn't really like my idea at first, but it turned out fine in the end because of the effect. It gave the piano a sort of honky-tonk feel. In fact, Paul asked me to play the solo when I made the suggestion but I was too embarrassed.