Taking part in the Maccabi GB fun run gave Andrew Leigh, Nightingale Hammerson's director of operations, the impression that he could comfortably complete a marathon.
“I thought: 'How much harder than a 10k can it be'?” The answer could be found in his post-race stiff back.
“Twenty-six miles long is how I found it,” Mr Leigh said plaintively. “The first 16 miles were OK but then I really hit a wall and had to dig deep. It wasn’t easy.”
Finishing in four hours 44 minutes, the 53-year-old raised £5,000 for services to Nightingale Hammerson residents.