According to The Beatles Bible, “Lennon was a notoriously bad driver.” On July 1, 1969, the day that recording was to begin for Abbey Road, Lennon, Yoko Ono, her daughter Kyoko and his son Julian were involved in a car accident, as Lennon drove into a ditch in Scotland. He would have probably been better off had he (1) been a better driver or (2) had a better work ethic, such that he’d show up in the studio, which is located in London, on July 1.
He did make it to the studio on July 9. As Yoko sustained more injuries than John, a double bed was ordered from Harrods and delivered to the studio, so she could be on hand in order to provide her insights into the music. Their first bed-in protest against the Vietnam War had occurred a few months earlier, in March, in Amsterdam. May 26-June 1 they had their second, in Montreal. Perhaps this bed was a protest about something else.
The first day Lennon was in the studio the band did takes 1 to 21 of “Maxwell’s Silver Hammer.” The following day they did overdubbing and mixing of the tune.
Lennon, evidently, missed Ringo’s 29th birthday, which was on the 7th.
The song in question is about a serial killer. That Macca is quite the crack-up.
Apparently John was completely dismissive of the song, reportedly not participating. George and Ringo didn’t much like it, either, but they performed on it.
One of the reasons they weren’t chuffed about it was that it took three days to complete. A three-minute, 27-second ditty. Three days.
Paul must have really been invested in it.