How do the doldrums work?

He Works At The Krusty Krab At Bikini Bottom, Ehe I Know This Cause Im His Mum (:

Because everyone is doing something, and even when you are doing nothing you are still doing something. Even in changing the way you work, the new way will still be how you work, and therefore you...

They don't although some have had some short term results. it uses high frequency sound to irritate & repel but of course, they get used to it & not all pests will find it unpleasant. Don't...