Source: Internet meme (2013)
So what makes Supercat grumpy? (a special Top 5)
1. Everyone trying to trick him into revealing his Cat Kent identity
2. Kryptonite (all colors)
3. Bizarro Grumpy Supercat's can-do attitude
4. Magic (especially STAGE magic)
5. These suckers and how they're always bitching about water or fire or bondage or their dead parents or some other damn thing.