They are most likely suffering from an anxiety disorder
Assuming this is a true or false question this is false. Children in high-pressure environments are more likely to bring guns to school.
For example, A child who excels in h=their classes and they are constantly being pressured by the school and their peers to be the best in the school is more likely to be frustrated and make irrational decisions due to the high pressure and stress.
For the mummys they took the brain out threw the nose because they thought the only important part in the mummy so they only the heart because they thought the heart did everything so they put the heart in a cinopic jar and put it back in the mummy so that the mummy can have a afterlife. I hope this is what u meant.