Saigon Chinese Sausage and Jicama Rolls

I AM ENJOYING A SNACK OF BO BIA RICE PAPER ROLLS FROM A STREET STALL. I’M SITTING WITH SOME STUDENTS, WHO HAVE JUST FINISHED SCHOOL. SUDDENLY, THEY SPOT THE POLICE; THEY GRAB THEIR PLATES AND STOOLS AND RUN, AND I FOLLOW SUIT. WE HIDE BEHIND A BUILDING AND WAIT UNTIL THE POLICE ARE GONE, THEN RETURN TO OUR SEATS AND CONTINUE EATING. THE VENDOR THANKS US AND CONTINUES ROLLING. THIS SEEMS TO BE A REGULAR OCCURRENCE FOR A STREET VENDOR. WITH NO PERMIT, THEY HAVE TO CONSTANTLY KEEP AN EY