As the argument went on, Mika was starting to see that they would be going round and round in circles at this rate if someone didn't back down. That someone preferably needing to be Sam. She watched on intently at everyone's body language, she saw Dean was trying so hard not to completely lose his cool as Sam kept bringing her true identity but as if she was another person entirely. After her own argument with Dean over that same topic, she knew this could only go so much worse if Sam didn't drop the topic. She also noted how Annabeth was being, she could see the genuine fear of what going back meant for her and it got her wondering, did her mother or father beat her? 

"It shouldn't be normal Dean! That's the point! It's not fair!" Sam said back before sighing as he felt Anna in his back and clearly crying. Hearing Dean be so callous to Anna made his blood boil but he knew his brother wouldn't budge at all on this. He also hated that Dean was pointing at a gun near her feet. "Dean stop! I know you're clearly frustrated still over your own situation but stop! I'll come back with you alright!? But please, don't hurt her...her mother and mother's friends do enough of that" he told them both, making Mika sigh and gently push Dean's hand that had his gun in down and with a swift movement, put the safety back on it, keeping her hand down ontop of his. "Dean he's right...she's just a kid that's acting out because of bad parenting." she said softer, trying to diffuse the situation a bit. "I understand wanting to run away but you can't take Sam with you I'm afraid." she told Anna.