Aquarius: Daily green

So you have these friends who never seem to have cash when the bill comes. It's always, 'i only have my debit card. ' and you're stuck holding the short end of the stick. The next time you're together, break out that calculator, do the math and leave your portion. Then, get up and go to the bathroom. If the tab still isn't paid, get out of there. Otherwise, you'll always be the cash cow.