A bold house cat greets a big and scary mountain lion and shows no interest in it whatsoever.

The mountain lion is seen pawing at a glass door trying to get the cat, but the fearless feline stands his ground and just stares at it.

YouTube user MabeInAmerica posted the video on Sunday and it's gone viral with close to 1 million views. 

We’re glad the glass door remained closed and the mountain lion walked away. The situation could have taken a turn for the worse.