<human>: Can you provide a brief overview of the text?

Help me Reddit!  I live in the South of England and have a large and inviting garden for cats.  Over the last few months an adorable black and white cat has begun to frequent my garden and my brother, girlfriend and I have all enjoyed playing with the adorable little guy.  However, tonight (it's 1:31 here in England) the cat turned up outside my window mewing and I let him in.  It's a cold night and there are foxes around, so I felt sorry for him.  I should mention that he's often been trying, with varying amounts of success, to get into the house as we always leave the back door open when we're in the house and garden.  I'm worried that he's not been able to find his way home, and I don't want to leave him out in the cold all night with foxes around (we've got a lot of foxes and badgers around).  He's already got blood from a small scratch on his face, and I'm worried about leaving him out.  Should I let him stay?  Or am I worrying over nothing, and should let him out?  Help me Reddit!
<bot>: A cat which visits my house during the day won't leave now the night time is here and I don't know what to do.