William James scandalized his brother Henry during a visit with the latter in England, by mounting a ladder and peering into the garden next door in hopes of spotting G.K. Chesterton. The story is well-known among Jamesians, but David Lodge's fictionalized version in A Man of Parts adds a delightful layer of (presumably) invented but entirely plausible detail, bringing H.G. Wells and his young mistress (whose favorite philosopher was F.C.S. Schiller) into the scene.
A few pages earlier we're treated to Wells' seductive explication of Pragmatism.
I've related roughly the same account many times, to many young people, but without Wells' results. Or intentions.