What should I be doing now? (Filing for D soon)

[Coconut]

woke up to a text from my son today, asking me if I wanted the dogs.

I replied "Did something happen? Yes, I want the dogs if you don't want them anymore".

He replied that he was tired of getting yelled at when the pee and poop in the house.

I called him when I could, he said that he takes them out when he wakes up, before bed, and every time he comes home or leaves, but he's gone a lot (teen with a life). Said it's mostly in the evenings or night because they both (him and his mom) are out late most days (separately).

I trained one of those dogs, and she would not go to the bathroom in the house unless she just wasn't getting walked (she's trained so well, when raining you can just tell her to go potty and she will), but I didn't want the other dog and told my wife that she would need to train her if she got her, and of course she never did. Luckily its a Chihuahua, so it's not too big or messy, but she's always pee'd and pooped in the house no matter how often you let her out.

Just makes me mad that he's getting yelled at for something that she should also be doing.. and he must be getting yelled at a lot, because he loves those dogs so must be bad if he's willing to let me take them away.