random stranger

is it because we're on a corner lot? some lady rang our bell last night at 11pm trying to pan-handle gas money. i swear she was casing our house, as it was completely dark and looked like no one was home. a few years ago Tim gave a couple bucks to some lady who came by saying the same thing (and claiming to be our neighbor). he thinks it might have been the same lady. maybe she just thinks we'll give hand outs so she's coming back for more? WTF?