You should tip massage therapist, anyone working in a salon (hair, face, nails)
And especially a fly fishing guide they typically put up with a lot more than all the others combined(my friend is one the stories are pretty bad) and any other guide. I tip based on15 to 20% but also how good the service was truly was. I've been a waitress and work retail and I will reward good service. I don't usually tip instructors