Gambling is defined in Colorado law as "risking any money, credit, deposit, or other thing of value for gain contingent in whole or in part upon lot, chance, the operation of a gambling device, or the happening outcome of an event, including a sporting event, over which the person taking a risk has no control." In practical terms this is defined more succinctly as: payment, luck, and the receipt of prizes. If one of these criteria is not present,...