The realization that I notice about a lot of people is that once they had something good in their life they will go out of their way to mess it up. Example, a lot of celebrities destroy themselves due to all the wealth they had and found a way to still be broke. A person who had a good person in their life they messed up the relationship. Example, Marge simpson expect homer to do some crazy after dealing with his crap, she still messing up after she got what she wanted. Dbz cell saga in general, everyone except yamcha messed up in the whole cell saga. America was built upon messing themselves up