You agree to be the substitute clinical educator for a peer who is ill. The educator tells you that the learners are really good—every one of them. You can trust them to do a good job and answer questions. About 3 hours into the experience, you realize that one of the individuals is not doing a good job—she was unable to explain the purpose of medications, she forgot to complete the glucose monitor test, and now she has contaminated a dressing change for a central line. What would be your actions as the substitute educator?