"I'm pretty much my friend's only contact for going out, his family don't bother with him because he's gay and they are unpleasant people. He doesn't have a lot in his life, but we really get on and I enjoy taking him on days out."
Well that pretty much breaks my heart - and touches on my worst fears for my own kids, social isolation.
Anyway I hope you and your friend and his little friends have many more trips. I'd be delighted to bump into somebody with ferrets.