Vodka. I think Vodka might have been involved in this? It's just my theory. 
LINK TO FULL STORY ==> https://www.outdoorrevival.com/news...ause-they-thought-he-was-a-park-employee.html

LINK TO FULL STORY ==> https://www.outdoorrevival.com/news...ause-they-thought-he-was-a-park-employee.html
Two Russian Have a Fight With a Bear Because They Thought He Was a Park Employee
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In Poland, two Russian men recently snuck into a national park in the Tatra Mountains and, apparently trying to hang on to their hard-earned rubles, they did not pay the ticket fee. According to Tomonews, they mistook an actual bear for a park employee dressed up as a bear and attempted to duke it out with the curious Kodiak.
Soon, the men were cut and bleeding and this poor Polish Pooh wound up knocked out and injured. The bear, Samson, was taken to a vet for stitches and the men were ordered to pay Samson’s medical tab.
One, trying to defend their idiocy, said they decided to “punch him just once so he would keep quiet.” How much vodka the men had consumed before these shenanigans was not disclosed, but it’s fair to assume it was a considerable amount.
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