Well, like we were told, homemade masks only protect others from you. So for homemade masks to work, nearly everybody has to be wearing them. I am assuming employees were not wearing N95s, but either surgical or homemade masks, and were exposed to a bunch of maskless people. So thus they were not protected. Also, in restaurants, people usually talk to each other, and to employees when they order, so bunch of virus particles are going to be flying around. So, people, if you really really really want to go to a restaurant, pick one with outside sitting area-less of chance to get covid.