We're not really sure what made this dope decide that it was a good idea to hop in a pen of deer, but chances are that he was fueled by alcohol and peer pressure.  One thing's for sure, though.  He immediately regretted his decision.  

Watch as he climbs the fence, squares off and gets his ASS HANDED TO HIM.  Who knew that a deer could throw down so fiercely?  No one.  Who knows now?  This guy.