I have been doing high school shows lately on a portable vert ramp.  On Thursday of last week it was super windy in Dallas.  We came back from lunch and found that the rail on one side of the ramp had collapsed!  The rail weighs about 500 lbs and two 2 inch steel rails had buckled under the stress.  Needless to say, the second show was cancelled.  Check the pics.

Normal set up