Inconsiderate motorists, and nutters that want to blow you up.
violence and mayhem
Not seeing things my way
Right now it is an economy possibly about to collapse completely into a worldwide depression and global warming.
corporate greed which in turn causes most of the problems on this earth.
Government interference (i.e. Providing credit to the banks; paying elastic prices for the healthcare industry; regulations; and instigating/maintaining inflation).
TOO many people