In the winter, it's important to look out for black ice.
Black ice is the stuff that can trick you into thinking you're good to go as you move about, and it causes tons of accidents every year. Black ice isn't just a problem for us humans, though.
When a farmer let the sheep and alpaca out of the barn for the morning, they all ran out together. What they weren't expecting was to slip and slide all the way down the frozen road.