The two rely on this daily structure, Doofenshmirtz even specifically mentioning it in "Journey to the Center of Candace" and in episodes such as "It's About Time!" in which Doofenshmirtz temporarily replaces Perry with secret agent Peter The Panda and they become depressed about not having each other to fight.
Keduanya mengandalkan struktur harian ini, Doofenshmirtz bahkan secara khusus menyebutkannya dalam "Journey to the Center of Candace" dan dalam episode seperti "It's About Time!" di mana Doofenshmirtz sementara menggantikan Perry dengan agen rahasia Peter si Panda dan mereka menjadi depresi karena tidak saling bertarung.