Why Math Is Important

 

I looked at my pint of beer and thought that it was the smallest pint of beer I ever had.  And, then I noticed the marking on the glass said 0.3 L, which is just a little over 10 ounces!  I called the  waitress over and explained my dilemma .  She answered "I don't do math" but went to the bar and poured water from another pint glass into one like mine and saw I was right.

 

Moral of the story:  Don't mess with a math teacher's beer!