Hovercrafts actually work without the skirt, but sit much lower above the water. The channel hovercraft needed to have their skirts patched up almost weekly, since waves ripped big holes into it. Thus I assume that one won't be able to disable this craft with guns. Barbed wire might be more effective?

ok, then we ship your machine.

Well, in cologne the beer is usually served in 2dl glasses. so 37 of this equals to 7.4 liters. if you arrive at the bar after work at 18:00 and leave at a reasonable 01:00 in the morning, this is arround a liter per hour. Definitely doable, but not recommended to do regularly.