There were incidents in the past (while I worked at SDC) when guests sometimes got extreme in their behavior. During a Young Christians Weekend one year, a bunch of kids jumped up and down on the swinging bridge until one cable gave way. No one was injured, but the bridge was closed for repairs for weeks. There were other incidents, too. Theft from shops, inconsiderate behavior while in line for attractions and shows, but to a limited amount only. I'm sure as the 1990's and the 2000's rolled through, there were more incidents, as that is unfortunately what we deal with in society today. Let's hope it was a smoke bomb only, and all is well with GM!