I have a 1 1/2 year old pure breed boxer (nutted). Whom if kenneled during the day is fine and does not do his business till I get home. I have recently tried letting him out while Im at work. Well that was a bad idea. Poo and pee all over. Why is that.
Thanks for any input

By Kenneled do you mean crated? Or outside in a dog kennel?

If he is used to being outside and you are letting him in during the day then he might just be confused about where he is supposed to go.

If he is used to being in a crate then he wouldn't want to poop in his crate as he knows he will then have to sleep with it all day.