In Cat Fight, he opened up a cat café and after fixing Brian's arm, Quagmire told him that he wanted to be known for something good instead of just being the town sex maniac. In "Family Cat", through a spy cam, he learned about Pouncy's true nature, believing Brian's words and ...
In "Brian's a Bad Father", he shoots Peter in the head (after Peter had deliberately shot him in the arm on a hunting trip) so that they can return to being friends again. While Quagmire is supposed to be seen in the right, seeing as Peter's the one who shot him in remarkably s...