Growing up, my friends and I spent our free time mostly digging in dirt, climbing trees, collecting slugs, racing our pet rabbits, bruising our legs, and crisscrossing the neighborhood on our bikes. In the winter, we skied, skated, rode sleds down steep tree-lined hills, ate snow from those same hills, built forts of questionable quality, and occasionally entertained ourselves with shoving snow in unsuspecting peers’ faces (an act commonly referred to as mula).