IANAL, but it seems like a grey area. He's not passing his test off as a "real" test, dispensing any medication, or otherwise acting as a doctor. Put another

IANAL, but it seems like a grey area. He's not passing his test off as a "real" test, dispensing any medication, or otherwise acting as a doctor. Put another way (and apologies in advance for the example): if the guy was into watersports and noticed somebody's urine tastes sweet, is it a crime to tell them it might be diabetes? What if somebody asks him to taste theirs?