It's so extreme that if you haven't gone to the bathroom if you haven't blown your nose and if you haven't stretched you have no idea what's going to happen to you.
Ta-da, all that bad bacteria and dirt is now trapped inside the drying booger, waiting for you to sneeze or blow your nose finally removing the germs once and for all.
So rhinovirus transmission occurs through contact with infected respiratory secretions, like snot and aerosols, particularly from nose blowing or sneezing.