You might have already heard about the Iditarod musher who killed a moose in the middle of the nearly 1,000 mile long sled dog race. Dallas Seavey purportedly shot the moose in self-defense, after it became entangled with his dogs. The incident sounds bizarre, and it demonstrates what a wild event the Iditarod is. The killing was not, however, unique in the annals of the race.

Seavey, who turned 37 on Monday, is not the first musher to have to kill a moose during an Iditarod. In 1985, the late Susan Butcher was leading the race when she used her ax and a parka to fend off a moose, but it killed two of her dogs and injured 13 others. Another musher came along and killed the moose.

Following deliberations by a three-person panel of race officials, Seavey has been assessed a two-hour time penalty for not properly gutting the moose in question. There are rules, after all. We want to keep this thing sporting.

If a musher kills a big game animal like a moose, caribou or buffalo in defense of life or property during the race, rules require they gut the animal and report it to officials at the next checkpoint.

Interestingly, officially sanctioned marathons actually have the same regulation. It comes up much less often.