This I'm Not Insane My Mother Had Me Tested T-Shirt has been inspired by the hit American sitcom The Big Bang Theory. The famous quote comes from Sheldon Cooper in an episode where Sheldon wanted to build a new friend using artificial intelligence. When Howard queries Sheldon's sanity Sheldon replies with 'I'm not insane, my mother had me tested'. This is a great Tee for any fan of the TV show. These Mens T-Shirts come in a choice of four colours and feature a two colour print. Available in sizes Small - XXL these shirts are 100% Cotton. This is an inspired by design and is not official merchandise.