I'm thinking of locking my cat in my guest room closet for three and a half months.
That's a really long time! Why do you want to lock your cat in a closet?
Because I am tired of him meowing so much at night and I want to get some sleep.
It's not at all right to lock your cat in the closet for three months. It's cruel to hurt defenseless animal. You should not do that to a cat!
I can do what I want.
Your cat will get over it's meowing phase and you will be able to get sleep. Locking it in a closed space is very mean.