Generally, grooming machines smooth a trail, making it easier to ski than if left in its natural state -- and yet there are times when groomers create conditions that make skiing a wee bit, well, more challenging! Let's talk snow for a minute: In late-winter when the thaw-freeze cycles make the grooming process tricky, the machines can chew up the slope's surface spitting out what is affectionately known as... Death Cookies. Best you can do? Keep your edge, and keep moving forward. We'll see you at the bottom to celebrate!