How about when you make a homemade counterpressure bottle filler, to bottle off of the tap- and then when the picnic tap and racking cane tube come apart, and the beer (which is now under pressure, hence the term "counterpressure") shoots out of the bottle in a high velocity while you stand agape with an open picnic tap in one hand, and a spewing bottle in the other hand? 12 ounces of beer, shooting at your walls, computer, and ceiling with great force.
I will tell you this- you simply cannot NOT chug an entire bottle of pressurized beer by placing the racking cane into your mouth. You will choke. Perhaps that is obvious to some you whom are smarter than I am. I really thought that I was going to die.