IF you decide to try to move it, I reccomend wearing latex gloves, maybe even dishwashing gloves with longer 'sleeves' on them. Be safe. A flat bit of cardboard to shoo it into a cardboard box might work. Spiders sometimes will rush into the box to hide, as long as the box is still, and the shoo is vigerous. LOL.
If kids are nearby, then yes, it's possible for one to be bitten. Or an adult could see the spider, decide to smush it, and be bitten(not to mention the spider getting killed too).