Uh, wait… 
Are you saying the cow has no legs and the milker no arms? Or…
The cow is normal, but the person doing the milking has no arms or legs? Or…
The COW has no arms or legs? (If so, then where the hell are all the cows WITH arms?)
Granted, either of those scenarios forms a fantastic mental picture. Just wanted clarification.
(Oh, by the way, what is the airspeed velocity of a tit-laden butterfly?)