Near the end of "Zeo", Bulk and Skull take a test for their detectives licenses. A monster attack occurs during the test, but the duo believe it to be part of the exam to see if they can "concentrate under fire". They manage to take the test during the entire attack, even as the office falls apart around them. When Detective Stone presents them with their results, they are initially pleased that they passed. Detective Stone then reveals that normally they would have failed, but they examiners gave them extra points for completing the test during the monster attack. This ends up shocking the two as they realize the attack was real and they could've died.