Sam has epilepsy and suffered memory loss. He gets angry and started hitting things around him when he doesn't remember how to do things.

Sam has epilepsy and suffered memory loss. He gets angry and started hitting things around him when he doesn't remember how to do things. He constantly needed someone to tell him to do things or remind him. He would even punch or slap someone when he couldn't remember. What do you think about this? Does a person with epilepsy normally act this way? With the way he acts negatively towards people, is this his personality?