Probably worse than that! We had bedbugs many years ago (thanks to a moron of an in-law who... well, details are probably irrelevant) and the exterminator said that seeing ANY meant that the problem was out of hand — bedbugs ALWAYS hide until every hiding place is gone.

https://medium.com/@jherlocker/imaginary-bugs-and-how-to-eliminate-them-61cb8fc339e3