The darling Aspie loves Science and animals. He wants a job. Science technician in a vet's lab would be ideal. BUT he doesn't do poo. Perhaps this is why his preferred, as in totally adored, choice of animal is the cat. (Takes its poo away somewhere else).
So, with a few negotiations he is now doing a bit of volunteering at a nearby equine centre and apparently poo is a lot less awful if it's on the end of a long shovel. And if the happy horse is nudging you with love.
Small steps. Smiling son.