Place it just before a scene change or a reveal, then follow the interruption with Metal Gear Alert for a sudden shift, or with Law and Order Dun Dun when the distraction leads into a serious twist. Keep it as the bridge between the setup and the payoff.
About this sound
This is a short spoken line, about three and a half seconds long, in which Kryten politely asks whether he can distract the listener for a brief second. It feels awkwardly courteous and gently funny, like a formal interruption from someone trying very hard not to be rude. The line comes from Red Dwarf, spoken by Kryten.