It also wouldn't be very fair on the poor rubbish collectors. I know they deal with some really nasty shit, but this thing goes beyond that. The smell would probably make the most hardened rubbish collector vomit his guts out. Do as you said, hoist him in a crane, ensuring that his repugnance is kept far away from innocent humans. Then dump him on the mum's doorstep. Place the biohazard sign you mentioned in front of the house so the postman and anyone else knows to stay well clear.