A man takes his wife to get tested for Coronavirus. Two days later, he gets a call from the lab.

Doctor: I'm sorry to inform you that your wife's test results have been mixed up with another patient's. We're not sure if she has COVID-19 or Alzheimer's disease.

Man: So what am I supposed to do now?

Doctor: I'd recommend taking her for a long walk and leaving her, if she finds her way back home, don't open the door.