When one thinks of a deer, one thinks of a gentle Bambi-like creature. However, adult male deers can be pretty rough customers. Especially during mating season, when they use their sharp horns to jostle over female deer companionship.

The video above was shot in a London park during deer mating season. As you can see, a man stumbles into the path of a testosterone-fueled stag, who then chases the poor fellow around a tree.

"I need some help here!," the man was apparently yelling. But there wasn't a whole lot anybody could do.  (Besides taking out their camera phones and recording the scary but humorous scene.)

Finally the man decided his best course of action was to climb the tree.

Deers can't do that, so the stag eventually lost interest and wandered away. The cops, who had been called by onlookers, then arrived and helped the (no doubt embarrassed) man out of the tree.

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