It is rarely boring interacting with Sangu Delle. He may have a Harvard CV and an extensive track record as an investor, but he wears his success lightly, with a puckish sense of fun.

I knew that my four attempts to secure an interview with him from Accra were unlikely to be dull.

First cancellation: travel problems. Second: Delle sends a picture of himself lying in a hospital bed with a drip in his arm. Food poisoning. A week later he still wasn’t feeling good. Another week on – fourth time lucky.

A rogue Caprese salad, in Nairobi, was the culprit, he reckons, while he was in town to check on one of his new investments. That firm – Wasoko, meaning “people of the market” in Swahili – is among the continent’s faster growing startups and Delle was in from the start.

“Wasoko is super interesting because what they do is they basically aggregate demand from small mom and pop stores. And they aggregate that demand to order those things directly from manufacturers or large distributors. So, it’s an interesting win-win,” he says.