As any piss play lover will tell you, the skill lies not in the drinking - after all, everyone and anyone can swallow liquids - but in the delivery of the 'golden nectar' in controlled way that allows it to be gulped down with the minimum of spillage. In this respect the funnel helps, but it would have been improved with a curved tube at the bottom, as it is not easy to swallow when your head is tipped backwards, as the video shows.