Anyone ever watch Venom ER? Mostly it's snake bite victims, but now and then a spider bite comes in too. Black widow spider can do some nasty things to you and put you in agony for a couple of days, but you'll most likely live.
When I was a teen i got bitten on my back by a recluse. Nowhere near as bad for me as for the guy a few posts ago, but I still have a small scar where the tissue damage occured. Blargh...hate em.