We have never noticed that at all. We used to try and get them back out. But we noticed that the same ones were getting back in somehow. Now we just let them be. We always have 2 or 3 and they never bother us. They do keep the little spiders and gnats under control. If I can ever figure out how they get in I will fix that so something less desirable doesn’t get in, but the geckos are harmless.