Hamsters
Consider the following facts about hamsters:
- They're found mostly in people's houses. - They come out mainly at night. - They run around like little wind-up toys. - They have two speeds: stop and fast. - They naturally avoid people. - If you try to grab them, they dive into the nearest tiny hole. - Once they've hidden, they can be extremely difficult to find. - They seem to like living in what basically amounts to a pile of trash. - They eat little bits of food, crumbs, etc. - They tend to be brown. - They reproduce very rapidly. - Fear of them (and similar creatures) is not terribly uncommon.
Conclusion: hamsters are large cockroaches.