GUINEA PIG!!

No so much here, but those things (the pigs, not the cats), make sounds exactly like headcrabs in Half Life.

Lol that cat is clearly fighting its urges to devour the little piglet.

Yep, the cat was like, "What the hell am I supposed to do to you without hurting you and being able to kick you out of my spot! Son of a bitch! I'll just sit on you then!"...

I find it hard to believe the pig wasn't placed in this position, and isn't currently terrified.

*blocked

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This is probably true, actually. I believe we tend to think all our animals are equally mobile. From that height a cat would find it easy to jump down but to a guinea pig a fall might be fatal. I think he/she is huddled against the wall worried about falling over the edge and hoping the cat doesn't push him/her.

I think the cat's reaction is one of friendship while still being annoyed at it's spot being taken. It's a funny way for a cat to react but I think the guinea pig's terror here isn't good..