Husband let his 12 year-old vape and I am LIVID.

My husband has a 12 year-old son from his previous marriage. Together, we have 5 year-old.My husband bought a vape pen today to try it. He doesn't smoke cigarettes, so he got Swedish Fish-flavored juice with 0mg of nicotine. I tried it, and it tastes good I guess, but I dont like Swedish Fish.Anyways, the 2 kids get home from school, and my husband goes to show vape pen to 12yo. Husband and him play video games together, and like to bond over their shared interests. He shows the 12yo the pen. I leave the room to tend to the 5yo.Husband goes to the garage to work, and a friend of ours stops in to say hello. He says he thinks something might be burning because of how much smoke is in the kids play room (where both kids hang out).I freak out and run in there cuz holy shit, fire is no joke! I'm looking around for the source and realize that it's all vape smoke because it smells like Swedish Fish.Friend leaves, and husband says to son "I didn't say you could have this much!" as he's laughing, and 12yo is smiling, saying "Oops, hahaha."I turn to my husband and ask him why he said 12yo could have any at all? Husband says theres no nicotine in it, so it's fine. My blood starts to boil. I say that he was doing that in front of 5yo. Husband says it's not a big deal, and it's not like 12yo was actually smoking."IT'S EXACTLY LIKE THAT, BECAUSE THAT'S WHAT HE WAS DOING" I say. "He was smoking in front of 5yo!"Husband thinks I'm overreacting, and keeps telling me it's fine, not a big deal.I had to stay away from husband for the last 30mins to cool off. I dont even know what to say to him to get him to understand that this is NOT ok!TL;DR Husband let 12yo vape in front of our 5yo, and apparently it's not a big deal, but I am pissed. via /r/Parenting http://bit.ly/2GnbIjq