On February 7, the Vibgyor International school in Bangalore, India had an unwelcome visitor in the form of the least-chill leopard that's ever existed. Before eventually being subdued with a tranquilizer, the leopard spent 10 hours wrecking havoc at the school and managed to give six people minor injuries, BBC reported. For those who think a leopard would be a cool pet, this footage will forever sear into your mind that that is a terrible idea. The worst, really. 

https://www.youtube.com/watch?time_continue=39&v=lkuxmBv4scM
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After he was sedated, the leopard was released back in the wild, where he can undoubtedly fend for himself. Seriously, no one should be concerned for this animal's wellbeing.

Sources: Digg