Tea leaves have three uses, at least at the time of writing. The top survey answer is of course 'for making tea' - congratulations if you got that one. Then there's augury, using the tea leaves to divine the future. Finally - and this one's the pointless answer - if they are stuffed into someone's nostrils while they sleep, it will often induce the voiding of one's urine. It's true, go look it up. Information to hold back from your children, if you have any.