A.k.a. One legged “Milking stool”.<p><a href="https://www.google.com/search?q=milking+stool&rlz=1C9BKJA_enUS690US693&oq=milking+stool&aqs=chrome..69i57j0l3.3227j1j7&hl=en-US&sourceid=chrome-mobile&ie=UTF-8#imgrc=VmYzW-ZkKJCqyM" rel="nofollow">https://www.google.com/search?q=milking+stool&rlz=1C9BKJA_en...</a>: