On the subject of inspiring oddities (in the London Underground mosquito thread), I read this piece on the BBC website about 'knockers up', people who were employed in post-Industrial Revolution Britain to wake up workers. Without cheap alarm clocks such individuals were an important part of life in industrial towns.
I was struck by the possibilities for gaming; not necessarily DWAITAS (though a historical scenario could easily include them) but any game set in the period from ~1800 into the Pulp era. The PCs could be attempting to find out about something that happened in the early hours, when few people would be around, and try to locate a possible witness. Or looking for local gossip from someone who'd regularly be tramping the streets in the early morning. Or perhaps they are the ones with something to hide; their nocturnal activities are accidentally witnessed, what do they do?
Whatever way they idea is used the 'knocker up' is a fascinating piece of local colour for a game.
Time, time,time, see what’s become of me. While I looked around for my possibilities... My AITAS files.