spit India spit

One day I was at Metro station a cleaner cleaning in a corner very hardly, I was surprised why this guy messing with these spots whats that, whats the matter, "ek hindustani wahan peak(spitting) maar ke gaya tha, aur baaki ne uske is aachran ka palaan kiya" -now for this I don't wanna click a pic. Just feeling shame cause these people are my brothers.