Being able to fake a negative test seems much worse than being able to fake a positive test.<p>That said, British schoolchildren were faking positive tests with orange juice to get 2 weeks off school! <a href="https://amp.theguardian.com/world/2021/jul/02/uk-pupils-orange-juice-fake-positive-covid-test-results" rel="nofollow">https://amp.theguardian.com/world/2021/jul/02/uk-pupils-oran...</a>