A pet cat likely used to seeing squirrels and birds in the backyard got quite the surprise when a mountain lion walked right up to the patio door and began pawing at the glass.

The fearless house cat stands its ground and if anything, seems curious about the larger cat. When the house cat meows, the mountain lion hisses loudly in return.

The house cat turns around a couple of times, as if to say, “Hey guys, do you see this thing!”

Another feline member of the household is not so brave, preferring to remain in the background.

The mountain lion paws at the glass for several seconds before appearing to catch sight of the people in the house and cautiously slinking away.

Comedian Tom Mabe filmed the unusual interaction and posted it on YouTube.

http://youtu.be/ZEan7uyhAm0