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Adrianben, yes it was a serious question. When you work in a small workplace, you all become friends with husband or wives. It doesn't meant they were doing anything naughty! Just having a dance and goofing around. What was I supposed to do, rush onto the dance floor and say "Unhand my husband you virus carrier?" I don't know where you work, but I would never have been left to forget that one. And why would I ask a question like this if I didn't want a real answer?
Anyway, thank you to everyone for your answers. We will make sure everyone keeps up strict hygiene and hopefully we will be ok. Thanks for your advice. Fingers crossed.