Maybe it is your perception or insecurities. But I believe we also have an energy field or aura that surrounds us. I get really irritated when people stand too close to me in a line. So I do a thing where I visualize (when I remember) my aura tightish around me like a cocoon and a layer of royal blue color for protection. Then when I'm at home or somewhere feeling safe, I let my aura spread out more. Maybe if you can focus an aura of peace around yourself when in public, you wouldn't be so bothered by what others do? And their negativity wouldn't be able to permeate.