Yep, I had one and that is how he was, my vet was terrified of him. Hated to see us coming. LOL!
It is unbelievable....364 days a year that a cat will do everything possible to show you their friendly nature and never harm you with their claws. Then vet day comes up...then you discover that claws of a serious nature and built as a killing machine. I had to develop a four-step plan for each single vet-day episode to avoid serious injury.