Black Hummingbird don't close their shutters, even though the Lemon Grove had them installed. There are few cafes, estate agents, bookmakers, banks, pubs, or charity shops that have shutters.
Launderettes need shutters because they are an obvious target as criminals think they can make a clean getaway.

What might work here is the German solution:
http://www.springwise.com/lifestyle_leis...rmet-cafe/