1. Kat is always wary of being trapped. No nice, soft, cave-like cat bed ever felt his presence. And a carrier? Forget it!
2. When Kat needs to go to the vet', which has not happened often enough (see item #1), it does not help to close him in a room 90 minutes earlier than necessary.
3. Once there, he knows something is up--which he already knew, if no food was left out for him overnight.
4. Remember that he may also need to go potty, and he will do that as soon as he is picked up.
5. Cat pee really stinks, and he will, too, when he has peed in the carrier.
6. Getting him into the carrier 60-75 minutes early may seem, on the surface, like an accomplishment, but it means that much time of listening to "Meow! Meow! Meow! Meow! Mew! Mew! Mew? Meow? MEOW!"
7. There is no good way to do this. None.