With all of the uncertainty over re-opening businesses, you might be tempted to ask your employees and customers to sign a COVID-19 waiver before you let them return inside your buildings.

Don’t do it.

Proving someone did or didn’t contract the novel coronavirus from any particular location or person is extremely difficult. But what isn’t difficult is sending the message that you care more about trying to deflect liability than just exercising due caution.

Wear a mask. Always. Especially when you’re at work. Require your employees and customers to wear masks, too. Maintain safe distancing. Wash your hands frequently. Sanitize surfaces frequently.

Sending the message that you are following the current best-known medical advice will go much further than flaunting science and waiving a waiver.