A waiter wearing a mask and gloves delivers food to a table to customers seated at an outdoor patio at a Mexican restaurant in Washington, DC, in May. SAUL LOEB/AFP/Getty Images Restaurant workers say they're afraid to enforce COVID-19 safety protocols for fear of losing out on tips. According to a new survey from nonprofit One Fair Wage and the UC Berkeley Food Labor Research Center, two-thirds of workers reported receiving a lower-than-usual tip after enforcing health and safety measures. The findings mirror a broader trend of outbursts, threats, and even assault against food service workers and retail employees since the onset of the coronavirus pandemic.