Max has gone on a field trip with his class to the local museum. However, he has gotten lost. It is now time to leave, and he needs to find a bus that will take him back to his school, which is School A. In the parking lot, there are 4 buses going to School A, 4 buses going to School B, and 4 buses going to School C. Unfortunately, all the buses look alike. If Max gets on a bus at random, what is the probability that it will take him to the wrong school?