That's likely to happen, although it's going to be difficult to prove. Someone might have family with health problems or suffer with health problems themselves. Others may not feel safe to go back to work. Of course there will be those that have taken the piss. A word also to dodgy employers who may use this pandemic as a way of stripping back the work force and messing with pay and conditions, while those who keep their jobs become so grateful that they take it with a smile. Aint just employees who are going to pull a fast one.