There are a few arachnids in the world that cause some nasty spider bites, which can cause some risky complications to your health due to their venom. The majority of spiders in the UK will not bite people, and if they do, their venom is ineffective. Unfortunately, and I hate to say it, being bitten by a spider will not transform you into Spider-Man! That is not a side effect of their venom. If that were the case, I'd be web-slinging around Surrey's streets instead of writing this blog!