Fun fact! No one has passed from a Blackwidow Spider bite since 1983 in the US. I got 3 bites almost few years back while cleaning out bushes. Got kinda feverish for a few hours but was fine. There are different types though, and if you're immunocompromised, sensitive to venom, young or elderly you could be facing complications - I mean obviously in all cases be careful - but you don't need to be terrified like it's Michael Myers coming for you.