Imagine Person A reading a book/watching TV/playing a video game/etc. Person B is bored and decides to tease Person A by tickling/poking them to try and annoy them. At first, Person A puts up with it. Gradually, Person A gets annoyed, until they finally snap and tell Person B to stop. Person B stops for a bit, but then mischievously tickles/pokes Person A one last time. Person A, filled with rage, chases Person B around the house until they crash into each other. They both laugh at their childishness.
(OT3 option: Person C joins in with Person B.)