When this cute gray cat, Sylvester, sees the white cat, Snowball, playing in a box with an open top, he seizes the opportunity to play some cat and mouse games.

Sylvester hops on the box’s lid, and closes it with Snowball inside. Then he playfully sits on the box top, and poor Snowball can't get out.

According to most dog owners, your cat would also do this to you, if it had the chance.

Dogs love to be locked in the trunk of a car. You can prove it to yourself with this experiment.
1.) Lock both your dog and wife in the car trunk.
2.) Wait for thirty minutes.
3.) Now open the car trunk.
Which one of them is the happiest to see you? Every time I have tried it my dogs was the happiest to see me.

[via BuzzFeed]