In "A Lot Going On Upstairs", Stewie uses the power of his dreams to transform himself into Elmo, noting that he speaks bad English on an educational show.
In "The Woof of Wall Street", Cookie Monster, Elmo and Herry Monster take offense at Brian being called a monster for investing in a company that makes protein shakes from dogs. When Elmo points out that some monsters are nice, Brian retorts with his voice actor's sexual abuse accusation, which Elmo responds by noting that the accuser recanted the charge. When Stewie notes that a second case expired due to the statute of limitations, Elmo refuses to comment. After an uncomfortable pause, Cookie Monster shouts "cookie!" which elicits joy from Brian and Stewie.