Place it at the moment someone crosses into the shot, then follow it with the You What SpongeBob sound for a confused reply, or the Law and Order Dun Dun sound for a verdict on the intrusion.
關於此聲音
This is a 1.7-second spoken line from Old Gregg, asking what someone is doing in his waters. It feels awkward, funny and faintly unsettling, like being caught somewhere you should not be, and it works because the question sounds both friendly and threatening at once.