People need to be clear.
If a flight test and you pass its P1s, if you fail its PUT
If its a club check and The instructor has any responsibility He/she is P1 and you are Put.
If you don't like it bog off and fly elsewhere.
With responsiblity goes logging of hours.
If a check not needed and But a request to go for the ride then pay and he/she will advise but you are in control.
If The instructor has no responsibility other than as a mate then its a mates flight.
Easy but be clear not woolly