|Appearances||Operation: W.H.I.T.E.H.O.U.S.E. (mentioned)|
The Toiletnator managed to knock Numbuh 1 out with the use of his potty bombs, which prompted Sector V to have Numbuh 1 delivered to the KND Hospital up on Moonbase for treatment. While passed out, the Happy Headband was secretly put on Numbuh 1 by Numbuh 74.239 and Numbuh Infinity to test his devotion to kids' rights (Operation: W.H.I.T.E.H.O.U.S.E.).