Can you toilet train your cat?

Toilet training looks hard. Has anyone ever attempted it and did you succeed?

I've tried it and they are ok with the cat litter now...you just have to constantly bring them to the loo when they want to do their business. Cats would always have this digging action if they wish to go to the loo and you just need to carry them to the loo for a couple of times, maybe a couple of days and they will be trained to go there themselves.

I also tried it, and now we are all happy with the litter box back.... Toilet training was too much stress for all of us to bear