Bear hunters will tell you that a good way to attract a bear is to put out bait. And in 10 states, including Michigan and Wisconsin, that's perfectly legal. Hunting dogs are another useful technique in the bear-hunter's toolkit, and 17 states say that's just fine.
But who else likes bear bait? Gray wolves, that's who. And wolves that are feeling territorial about a bear bait stash can—and sometimes do—kill hunting dogs released at the bait site.