Author: Goulden's Axiom of the Bouncing Can

If you drop a full can of beer, and remember to rap the top sharply with your knuckle prior to opening, the ensuing gush of foam will be between 89 and 94 percent of the volume that would splatter you if you didn't do a damned thing and went ahead and pulled the top immediately.

Alcohol Beer Food/Drink Murphy’s Laws Situations