Disappearing

Sometimes I just want to disappear when I'm in public. If I had a superhero power it would be the ability to summon a soundproof invisible box. No one would be able to hear my coughing and no one would be able to interfere. I don't know how superman was always able to escape off by himself to change clothes and never did someone happen upon him. People just seem to be attracted to the area I try to go to cough and clear my throat. For now paper towels or my scarf will have to due.