No one feels threatened at all. It isn't hard to cut corners, burn up routes, and get done super early, literally anybody can do that. The reason people disagree with what you do is because you are all about yourself and don't have the union or your fellow union co workers in mind. You burn up routes making Ups expect that same amount of work from everybody. If all drivers were like you then it would cut union jobs and make Ups more unbearable than it already is. One day you will wake up and realize that you need to slow down because early on almost every driver has that go getter attitude. It takes time to realize what Ups is all about and that working harder and faster only gets you more work and an old beat up body.