Had my 2nd jab a couple of weeks back at the Guttmann centre at SMH. It was booked at the same time as the first jab and purely by coincidence, my son booked his 1st jab at the same place on the same day, but his appointment was three hours earlier than mine.
To save two trips, he said he'd take me over, so I tried to alter the appointment time - nightmare! The upshot was I could cancel my slot but with no guarantee I could replace it with one on the same day, let alone the same place. I gave up and just went on the off chance that they would see me early, which (after a bit of to-ing & fro-ing) they did.
The first and second jabs were being done in different buildings, so I went to mine, got jabbed and was back out in the carpark in five or six minutes - my son was still queueing to get in.
Then it started to rain and he had the car keys - 45 minutes.......