Greta Garbo, the very private Swedish film actress who passed away in 1990 at the age of 85, is credited with having said, "I want to be alone," but what she really claims to have said is, "I want to be left alone." Perhaps something got lost in the translation... ;)
Check here to see how others have interpreted this Theme Day.
An open door is
A request to go on in
A closed one says don't