I've never had a problem with the steam. I usually open a window or two when brewing, otherwise, you will end up with a bunch of fogged up windows. But it isn't much of a hazard.
Primary: Exam Brown Ale
Primary: Unknown Mead
Secondary: Matt's Saison
Carbing: Raspberry Apple Cider 333
Enjoying: Lazy Ass Orange Pale Ale, Belgian Grand Cru, Belgian Dubble, Cherry Stout, Demonstration IPA
On Deck: Black IPA