DH and I co-habit with my parents. Most of the time everything runs smoothly. But of course some issues come up now and then. One is my dad overcorrecting my 2yo's speech. It mostly only happens when my 2yo asks my dad for something, like some of his food. My parents have some foods that are just "theirs" in a different pantry... mostly my dad because he's very particular (and a little possessive) of his foods, like breakfast cereals, and I don't want my kids to eat them anyway. If my kids ask for some of their food, I usually leave it up to the discretion of my parents as to whether or not they will share with the kids. Mostly this situation arises when the 2yo sees my dad preparing his own breakfast. Then when the 2yo asks, "Can I have racecar cereal?" (meaning Wheaties) in his typical 2yo voice, my dad will put a little in a small bowl and then hold it in front of my child and say with exaggerated diction, "Say, 'Pop-pop, may I have Wheaties, please?" with all the consonants obnoxiously punctuated. My son will usually think that's funny how my dad is talking and giggle and say part of the phrase. Sometimes my dad will repeat himself and try to get him to say it again before he gives him the cereal. Admittedly, my dad wears hearing aids and also is constantly asking me, "What did he say?" while the rest of us adults, including my mom and my 6yo son understand him just fine.
At first I just over-looked the behavior. But lately it has been really irking me and I want to say something, but I am not sure how. I'm thinking of asking him if he is worried that the 2yo won't develop proper speech and that is why he is correcting him and then reassuring him that as he grows his speech will mature, just like his brother's did. I would like to tell him why I don't think it's right to do that to a kid, but I can't think of a good reason. My dad is very science-minded, so if I could come up with some kind of child development reason I think it would have more impact. I am also thinking of talking to my mom about it... it seems like he mostly does it when it's just him and me around... maybe because he knows that my husband and mom wouldn't approve or maybe because when my mom and husband are around my 2yo interacts with them more... not sure. I think my mom is able to approach him about these things in a way that he listens to better.
Anyway... just wanted to bounce this off of you... have you dealt with anything like this?