[alpacassei]

I’m guessing you mean if a spider got in his cage not a hamster lol

In the UK we dont have any spiders that could eat a hamster luckily and theres almost no chance of a spider biting him (they bite not sting). A hamsters also very unlikely to eat a spider. There’s really nothing to worry about, all UK spiders are interesting in eating is flies and other small insects

If s spider was to hypothetically build a web in your hamsters cage, it would be on the bars so quite noticeable and easy to remove.