Something I've never thought about in Lab Rats is how the Rats grew up as rich kids, partially Leo too since he first comes into the show at like 12. And we never hear anything about how it was for Leo growing up. Was it just him and Tasha? He sure as hell didn't give them a better life emotionally or mentally though. He didn't give that to anyone
I do believe it was just him and Tasha. I think it was mentioned maybe once or twice? That Leo didn't really have a dad. But idk, I might be misremembering. Though, in the alternate universe where Donald wasn't married to Tasha, only her lab assistant, Leo still didn't have a dad. So.
Anyway, yeah, Donald sucks. While the rats technically grew up as rich kids, for the majority of their lives they weren't even treated like people. They're privileged, of course they are, but like... it's hard to say that when they're basically abused. I'd say just mentally, but considering the training they go through, they might even be able to make a case for physical abuse.