Hello All, so my sister in law has a habit of joking around and being sarcastic about stuff. But tonight she kinda pissed me off... We brought our 4 month old over to my in laws since we had a wedding to go too. While I was talking to my mother in law and telling her the baby has been teething all day, my sister in law sarcastically said “already!?” Like if it was a bad thing, and I sarcastically said, “didn’t you know their are babies born”. Then, her being the smartass she said “don’t you know I work at a dentist office, of course I know”. Then why the fuck would she make such an obvious comment? Was I out of line? She’s always been like that but I’m tired of that shit.