We’ve all seen people on public transportation do gross things. My personal pet peeve is when people sneeze into their hand and then go right back to holding the strap with that hand. Don’t they realize they are leaving a sticky, contagious surprise for the next person?
Still, that example falls into the range of ordinary grossness: enough to make you curl your lip in disgust, but probably not gross enough to really shock anyone. The bizarre and gross behavior one Chinese bus passenger recently caught on film goes far, FAR beyond that.