DC's have been saying "why can't we have a cute widdle kitten?" for years and the answer is "because we have two middle aged cats and that's enough for one household - also, kittens grow up very quickly.
But Christmas begging letter from the rescue where we got our cats says "could you foster a mum and kittens for us?" and actually I think maybe we could - we have a large attic spare room, and the DCs are old enough to be gentle. I reckon we maybe could take in a mother and litters for a couple of months until they could be rehomed - they'd have shelter, quiet, affection and socialisation; the shelter would have more space and we'd have actual kittens!
So can someone tell me what the flaws are in this genius plan? What appalling downside have I failed to realise?