It’s hard to predict how wild animals will respond to different situations. One moment they might be playful, or pay humans no attention at all, and in the next, something could set them off and provoke a hostile or angry reaction.
That’s what happened with this bear in Finland. A group of friends got out their cameras when they spotted the bear playing with their dog…but when the bear noticed them, he was none too pleased!

Source: Aggressive bear charges spectators in Finland by SamiHaaranen on Rumble