#1: When your soda is just about gone, and you figure you'll just chug down the remainder in one gulp. You tip the soda can way back and only when it's too late do you realize that there was more left in the can than you thought. It's too late because your mouth is full and more liquid is pouring into it, but you can't tip forward and stop the flow without dumping out what's already in your mouth. Nor can you close your mouth to swallow without squeezing some out. Inevitably, you dribble soda everywhere, all over yourself and the floor, as you race for a sink or a trash can.