This has reminded me Kaz.
A few months after I'd met Don we decided to go on holiday - he gave me his credit card and off I went to the travel agents (that sounds so old fashioned now! ) and promptly booked us 2 weeks in Gambia!
Then we realised various jabs had to be given before the trip and it turned out the yellow fever one wouldn't be done in time.
So we had it done anyway..and accidentally smudged the date on the certificate.
This was the trip that, 2 days before we left, I realised my passport would run out whilst in Africa.
Resulting in a hastily arranged day in London with a pit stop at Petty France to pick up an emergency one.