I'm thinking of possibly ruining my friendship with someone
That seems severe, why do you want to ruin your friendship?
I want to make his life miserable for a while.
If this person is really your friend, then why are you trying to make their life miserable? You shouldn't sabotage a friendship. If you really don't like this person anymore, you should respectfully explain your reasoning and end the relationship.
Friendship is overrated and they're just wasting my time. I can make his life as miserable as I wish and no one will stop me.
Sabotaging your friendship will hurt your friend's feeling and I'd encourage you to think twice about this. Making his life miserable could really impact him moving forward. Have you thought about how you would feel if he did this to you?