Several of the folks at our vet were apprehensive when we got Diesel, but he won most of them over pretty quickly by coming out of the crate and purring and rubbing on the vets.
However -- when he had his knee surgery he earned every single bit of the "crazy Bengal" reputation and now we're "the people with the crazy Bengal" to the vet who did his surgery
It was so bad they moved all of the other cats and small dogs out of the recovery room into triage crates and they shut the door to the room. They had me go in and get him out - and he tried to take my arm off in the process
I can't blame Diesel though, he was in pain, in a strange place, in a strange cage and absolutely terrified plus my friend told me later that the pain meds they gave him *can* make cats freak out