Some in the community might try to understand her situation, but they are often in the minority. Most will view her with suspicion and anger. For example, if she tries to go to the local store, she might receive dirty looks or be shunned by other customers. Her reputation is tarnished, and it's very difficult for her to regain the community's trust.
The community usually reacts harshly. They might blame her for not raising her child properly. People may avoid her, and she could become an outcast. Her family might also face discrimination because of her child's actions.
In many cases, the mother could be a victim of circumstances as well. Perhaps there was a lack of mental health resources in the family or community. The child may have been bullied at school and she was unaware. She might have tried her best to raise her child right, but external factors led to the child's downfall. She now has to live with the stigma associated with being the mother of a school shooter.
She's probably super excited. She might run and give him a big hug right away.
In case they were involved in something dangerous, like playing with matches, the mom has to be firm. She should explain the serious consequences of their actions, not just scold them. For example, she can show them pictures or videos of fire accidents caused by improper use of matches. And then, she should set strict rules to prevent such dangerous behavior in the future. At the same time, she should also encourage them to be more careful and think about safety all the time.
First, look away to respect her privacy. Then, in a calm voice, say something like 'Mom, I'm sorry. I didn't mean to intrude.' And then, give her space. If she wants to talk about it later, be open and honest about it, like explaining that you just happened to be there by accident and that you'll be more careful in the future.
Annabeth's reaction could vary. If she's been missing Percy a great deal, she'll be overjoyed. She might show him around the school, proud to introduce him to her friends or teachers (if possible in the context of the fanfiction). However, if she's in the middle of something important like a test or a big project, she could be a bit annoyed at first but still be happy to see him deep down.
Apologize right away. Say something like 'Sorry, mom. I shouldn't have worn it without asking.'
She might be shocked at first. After all, a tattoo is a personal and permanent thing on her body. But if she has a good sense of humor, she could laugh it off and see it as her daughter's innocent creativity.
There's a chance that she is not very interested at all. Maybe she is just being polite and her mind is wandering elsewhere. She could be thinking about her own tasks or problems while the man is talking, but still gives some occasional nods to show that she is listening.
She might be very excited and ask Caillou a lot of questions about the story.
In some cases, mom could react with amusement. Say, if she found her son trying to imitate her walk in the high heels, she'd laugh and tell him how cute he looked. She might even encourage the child to have some fun with it for a little while, as long as they were careful not to break the heels.