Place it just after the family setup, before the reveal sinks in, then immediately follow it with a shocked reaction and a nervous laugh to keep the edit moving forward.
Über diesen Sound
This is a short, roughly ten-second clip built around the idea of Dexter's disturbing family, presented as a single unsettling moment rather than a conversation or a song. Its tone is awkward, dark and deliberately uncomfortable, the kind of humor that lands because it feels wrong to laugh at it. It works best as a quick shock reaction, leaving the listener unsure whether to laugh or look away.