Mistress Natasha, a competitor to Mistress Belle, when Belle du Jour was the number 1 bdsm parlor in NYC, insisted on providing Her golden to everyone who came for a scene in Her w.75th Street Brownstone basement dungeon. She would be drinking enormous amounts of Green Tea all day, in order to make recycling easy for Her. She too did it as you describe, crouching down, completely nude, and positioned right above the mouth bowl. She rarely missed. All the drops had to be swallowed. She was my "aha" moment 40 years ago.