You're just sipping your morning coffee, browsing through the news sites, scrolling absent mindedly through Facebook and Instagram and everyone else's breakfast. You flick open your bank account to check that your mortgage cleared, and your heart stops momentarily. A deposit of $993, 613.03 was made into your account last night. You blink...it's obviously a mistake. One quick call to Shelly, your personal banker, reveals that it was not in fact a mistake. The morning just got a wee bit more interesting. What shall you do?