Have you ever heard of 'grate training' a dog?

Posted by EscapedSmoggy@reddit | AskUK | View on Reddit | 18 comments

I have a dog and my mum recently walked her on her own, obviously resulting in my mum having to pick up dog poo. She tells me it is the first time she's ever picked up dog poo. This confused me because she had a family dog in her late teens-late 20s, in the late 80s-late 90s. I questioned how she could have never been pick up dog poo, and she claims everyone 'grate trained' their dogs then. Apparently this is when you train your dog to go to the toilet on a grate, so you don't have to pick it up. I'm not sure if this is: a) a few people she knew who did it and she thought everyone did it and it was the norm. b) an actual phenomenon I've never heard of because I'm too young. or c) she's completely having me on. Was this a thing?