Yes, some people really do suck. Why invite them into YOUR precious life? God gives us a finite number of days above ground. Why pollute a single second/minute/hour/day/year with a sucky person? If they were the tray that raw chicken comes in, how long could you stand to leave it in your kitchen trash? Time to kick those stinky peeps to the curb trash can for pick up, baby!
Your day will go the way the corners of your mouth turn. Good sign to have hanging around when you've got little kiddos. Bad attitude => bad day => bad month/ years ...
True story. One morning at the beginning of June I woke up stressed and anxious. All of a sudden calm washed over me when I was hit by a thought. I have a choice of worrying or doing everything I can to take care of the things I can control and let life (or God) take care of the rest. This has been the most productive time of my life, also the happiest.