You've seen it on a nature documentary -- the tiny Egyptian plover implausibly cleaning the teeth of crocodiles swimming in the Nile. In a win-win situation, the bird feeds and the crocodile's mouth stays healthy.

A similar set-up was taking shape in Carsten Grøhn's mind back in 2015 as he paced around at home recovering from a skiing accident -- shortly after being appointed as Global Head of Private Capital and Real Assets at Pensam.