Jake Biting???

Last night after I finally got Jake to calm down, my mom opened the door to check on me. Jake got all excited and jumped up once my mom closed the door. So, I pet Jake to calm him down, and what does he do? Jake BITES me!

Jake! That made me so angry I pushed him off my bed and out of the room. Do you have any suggestions as to how to stop jakes biting fury?