not all people react the same , just like a bee sting, or spider bite...one woman we know took refuge behind a wall built from coral during the rain, a multi-leg crawled out to escape the rain pouring into the wall on to her hair and bit her on the cheek, her face swelled up like a balloon, I was bit, and all it did was swell a little bit and itched for a couple of days...as Rob said nowdays to get bit you almost must go looking for them....enjoy