How can I counter persistent underhanded sarcasm?
With genuine naivete
Stop countering it.
>>8228071
this, weirdly enough.
>>8228071
Actually false naivety. You obviously know the source of their sarcasm, so its not genuine. Be assertive by asking them to explaining their reasoning. It forces them to either open their reasoning to counterattack (or if they are correct, understanding) or they defend with some other insult, which if so you aren't really having a conversation, so either just insult them back or find something better to do.
>trying to win no matter how low the quality of conversation
Sad!
>>8227822
An hero
>>8227822
op do you have a problem establishing a line of communication with your teenage daughter?