First and foremost, you have to be a dog lover to work with ... love of dogs and your desire to become a trainer, then it is ...

I genuinely don't understand the ‘why’..." What's your best tip for training a dog? Let us know in the comments below.

Not all dog groomers are professionally trained and certified. I do recommend, however, that you invest in the training to become a professional dog groomer if this is a service you want to sell.