Howard and Sheldon Zxc2.jpg|Watching their laser tag game. Bar7.jpg|Sheldon and Howard. A25.jpg|Sheldon wants to meet Hawking. Alg2.jpg|Howard helping Sheldon with his friendship algorithm. Alg1.jpg|Howard helping Sheldon with his friendship algorithm. BFP4.jpg|Yelling at his mother. BFP1.jpg|Sheldon sleeping at Howard's. Sheldon with Howard in his room.jpg|Sheldon cleaning Howard's belt buckles for a chance with Stephen Hawking. Sheldon receives a box with the maid outfit.jpg|Sheldon cleaning Howard's belt buckles for a chance with Stephen Hawking. TF7.jpg|Teaching Sheldon Chinese. Sal8.jpg|Penny is seeing a doctor? TF18.jpg|Howard teaching Sheldon. Lego7.jpg|Howard helping Sheldon deal with an argument with his mother. Lego11.jpg|Sheldon saw something his mother was doing. fl15.png|At th