Grumpy Cat has made more money in her two short years on Earth than you will in 10 years. It’s depressing but it’s true. By last September, Grumpy Cat’s (real name: Tardar Sauce) takings had amassed ...

The dwarf feline with the overbite can thank genetics and a generation of meme-obsessed online groovers for her good fortune. But more materially, she, and her owner, single mum and former waitress ...