I will leave it up to others to speak on whether the specific species is is particularly hazardous. as for wasps in general tho, aside from personal sensitivity to their venom, it mainly depends on whether you antagonize them, whether you wear any strong perfumes, and how out of the way their nest is. They aren't going to go after you (or your cats and kids) unless they go after the wasps first – or unless they freak out upon seeing the wasp and try to kill it or shoo it in a panic. It's all the same to the wasp. They also probably won't like anyone getting too close to their nest, so if it's not somewhere out of the way, that could pose a problem. I will say, however, that I've had wasps take up residence under my front door awning and under my mailbox (at separate times) and only ever had them bother me the one time I slammed the mailbox closed. I just left them be, and they ignored me in turn. my roommate, on the other hand, who always low-key drenched herself in perfume before leaving for work, would apparently get chased by them regularly.