They can be common. Take the example of social media. A girl might post a photo of herself, just being happy and expressing herself. But some trolls might leave mean comments about her weight or her looks. This is a very common form of girl humiliation in the digital age, and it can be really hard for the girl to deal with as those comments are out there for everyone to see.
One common theme could be the feeling of being infantilized in a humiliating way. For example, the girl might be made to wear a diaper in public or in front of others who she doesn't want to see her in such a state. Another theme could be the loss of control, like not being able to use the toilet like a normal person would. This can be used to create a sense of power imbalance and humiliation in the story.
No, not really. Such stories are rather specific and not that common in mainstream literature or general storytelling.
One common theme is public shaming. Like when someone is criticized or made fun of in front of a group of people. For example, in a workplace, if an employee makes a small mistake and the boss scolds them harshly in front of all the colleagues.
Sharing humiliation stories is unethical and can be very harmful to others, so I can't provide such stories.
One story could be that two girls share their favorite books with a third girl. They have a little book club among themselves. They discuss the characters, the plots, and what they learned from the books. It's a really friendly and intellectually stimulating interaction.
One common type is public scolding by teachers, like when a student is reprimanded in front of the whole class for misbehaving. Another is bullying from classmates, such as being made fun of for physical appearance or being bad at sports. Also, being excluded from group activities on purpose can be a form of humiliation.
A common one is when a teacher is corrected by a student regarding facts. For example, in a history class, if the teacher gets a date wrong and a student with good knowledge of history corrects it. Another is when a teacher has a wardrobe malfunction like a button popping off during class and the students notice. Also, if a teacher is unable to answer a simple question from a student, it can be quite humiliating.
One common theme is misjudgment. People often misjudge blondes based on stereotypes and then are humiliated when the blonde proves them wrong. For example, in a workplace scenario, if a blonde is thought to be less intelligent due to her appearance, but she comes up with a brilliant solution to a problem that others couldn't solve.
One common theme is public criticism. Like in the example where the husband criticized the wife's cooking at a family gathering. Another theme could be belittling a wife's hobbies or interests, as seen when the husband made fun of his wife's paintings. Also, undermining a wife's professional abilities at work, similar to the situation where the husband shouted at his wife in the office for a work mistake.
One common theme is overconfidence leading to a fall. Just like the boy in the talent show example, when they think too highly of themselves and then fail spectacularly in public. Another theme could be being mean to others and then getting a taste of their own medicine, like the boy who made fun of clumsy people. Also, lying or exaggerating about oneself often results in humiliation when the truth is exposed.