Boarding a flight can feel like an interminable process, especially if you have found yourself in the final boarding group. Sometimes, you try to position yourself at the gate so that you'll be the first person in line when your group is finally called, but people end up thinking you're already in line and you have to step aside because you are not, in fact, worthy enough of being in Groups 1 through 4. Here, we have an entitled Karen passenger who insisted on being bumped up to an earlier boar…