I was always terrified of just about any type of invertebrate, whether it be insect, arachnid, etc. However, when I was doing wetland work, I had to identify aquatic invertebrates, I pretty much got over any fear I had of those critters. As prehistoric as some of them look - they're not following me out of the water, lol. I'm still a little sketchy about terrestrial inverts, but not like I used to be. I can appreciate invertebrates in general a lot more since I had to spend so much time studying them in order to indentify the aquatic nymphs.
That does not mean I want them crawlin' around my house! I have put around mint extract, cuz it's supposed to deter them.
I had to take a couple entomology classes when I was in grad school, but they were really on the periphery. One was an insecticide toxicology class and the other was some kind of pest management course. There may have been a third...it's a little foggy now, lol.