Mark my woof

A character with brown hair and a brown jacket makes a dismissive gesture, then holds up a yellow sticky note with a surprised expression. The scene cuts to a man in a cowboy hat and glasses, who holds the same note, which reads "I'm gonna take you down! Mark my woof! -Wuf" with a paw print, and he frowns. The scene then cuts to a character with large, curly black hair, who is screaming with their mouth wide open.