Well, i think i can confirm he plans to become a permanent resident. He has been here for two days and I don't see a web. Hopefully, I'll see him again tomorrow.
I tried shaking him and he just won't leave, seems pretty determined. What's funny is he def knows where the water level is in the pitcher. He even climbed up as I tilted the pitcher to drown him. He climbed up a little, and then climbed back down.