Spiders and snakes? Not really. The most dangerous European snake is the Adder, and the most dangerous spider is a Black Widow. Neither are forest dwellers.
I think the fear of humans may be unfounded too?
Looked into this a while ago as a hiker was killed by a snake bite on a local mountain so i wanted to research what type of snake it was and how i can best spot it and avoid.
The vast vast majority of snake bite deaths in Europe were caused by the Vipera ammodytes.
I found it extremely difficult to find a good source of data on bites, as i say there was a guy killed on a local mountain a couple of years ago, but i wasn't able to find any statistics with this indecent included.
Plus i'm guessing that most snakes scuttle off after biting so identification is tough.
With the Vipera ammodytes it's a triple threat because:
a/ It's extremely venomous
b/ It tends to dig in and defend rather than scuttle off
c/ It settles in trees and bushes at around chest height so extremely difficult to spot and if it bites the venom is injected closer to your body mass so more difficult to tourniquet off.
Chances of being bitten by one are extremely small, to be honest i do keep and eye out though, as i say we had one fatality from a bite a few years ago on Mount Parnitha, a mountain on the outskirts of Athens that i spend a LOT of time MTBing and hiking on.
Not sure how fast the strike reactions are, but if i'm cycling through dense single track there is no way i'd spot one quick enough to stop or taking avoiding action.
Hopefully i'd be past before it noticed me.