I helped my gf once take care of a few orphaned kittens ("fostering") and every part of it was disgusting (this was done in an apartment). But the part that haunts me is I had to grab them by the skin of the back of their necks and inject them with some sort of antiviral drug (ringworm?). They screamed bloody murder every time. You also have to make cat food slurry and inject it into their throats while they fight you and most of it gets on their coats. It was a miserable experience.