hans moleman?

for serious?
this is the neighbour you call 'eccentric'...

"'Mole Man' spent 40 years digging"

For 40 years, the retired English engineer quietly worked alone, expanding the basement at his family's Victoria era home, at 121 Mortimer Road, in the London borough of Hackney.

Experts, called in by borough council, estimated that one little old man had managed to move 100 cubic meters of earth from beneath the roads and buildings close to his property. In all, he had reached out 18 meters beyond his basement, and only stopped digging deeper when he finally hit the water table.

Neighbour Marc Beishon dryly jokes that they always expected William's head to suddenly poke out of their kitchen floor.