Learning from R Meir and Beruriah? of course, both from their achievements and shortcomings. Why would Gemorah bring those stories otherwise – just to make fun of them? R Yehuda himself brought Beruriah as a (positive) example to a guy who wanted to learn too much too fast.
Regarding the family, you can learn from Rav whose wife always sent him the dish opposite of what he requested and his “smart” son changed his words and made Rav happy for a moment (not just with the right dish, but with the fact that the wife changed her attitude).
There is a lot to learn from this (direct one – do not teach kids to lie even in permissible case of shalom), but – if you can keep the secret here – I learned to request the opposite of what I really want in those – rare, very rare! – cases when I expect make request to be reversed. It was most important for Rav to have a peaceful spouse, but I am humble enough to be satisfied just with the right beans in cholent.