That's the worse kind.They're mutant wasps. They grew gills, and at night while you're sleeping, they swim through the sewer system, up your house's plumbing system, and crawl through your sink drains. They only have one desire in this life: To haunt your every waking moment, and then invade your dreams, driving you to the brink of insanity. Once they have reached this goal, they will enslave you and take over all you hold dear. There is no escape.
Unless you sic the rabbit on them.
Imp