For the last 2 week there has been a black and white smallish cat come out of our shed (door always slightly ajar), i've watched it from the kitchen window wander around the garden a bit, stretch, have a lay down then go back into the shed, i've kept watching for a while and it stays in there. Today i was sat out in the garden when it's come out of the shed again, it doesn't look to have a collar and was quite shy. I offered it some food and water, it scoffed the food and pottered around for a bit but didn't come close to me. Could it be homeless and living in my shed? How would i know it were homeless?