I rang up 2 places asking about feral cats, and each time I was rebuffed, and i asked both why not, and they seemed to think it wasn't a good idea, but they wouldn't elaborate on it, myself i think its better than living in a cage, and being put down, and i also think an allotment is an ideal environment for them, but it looks like I wont be getting any for my allotment, shame (I live nr Heathrow)