Two toddlers were injured, one critically, after the bounce house they were playing in was picked up by a gust of wind and sent flying through the air before crashing back down to the ground. One father told reporters he was informed by a volunteer at Sullivan's Farm in Nashua, NH that the structure was open and free to play on; farm officials say the bounce was being dried from a cleaning and wasn't tied down.

For the second time in less than a month, two children were injured after the "bounce house" they were playing in went airborne.

What you see above is a "bounce house"—those inflatable trampoline domes that kids love to jump in—being swept 50 feet into the air in South Glens Falls, N.Y. yesterday. Of the three children inside, two were taken to the hospital with serious injuries.

Two girls were hurt in Arizona over the weekend when the inflatable castle in which they were bouncing was carried away by a sudden gust of wind and deposited on the roof of a neighbor's house. One of the girls is still in the emergency room with serious head injuries, apparently in "serious but stable condition"; the other seems to have escaped with only minor injuries. In the future, please, remember to properly secure your enormous air-filled castle; but remember that wind is not the only danger threatening your bounce house-occupying children: Last year, California's attorney general filed a lawsuit over high levels of lead in bounce-house vinyl. [ABC15; KOLD; stock image via Shutterstock]

Today in Reasons You're a Terrible Parent: that bouncy castle that you rented for your child's birthday party has probably already caused them irreparable lead poisoning. Sorry.