Back in my college days, there was a major emergency in the old Nat Sci building. As someone was going through some old stuff (probably in anticipation of a move to a new bldg), someone came across an ancient jar containing picric. Alarm and consternation ensued. Firetrucks, disposal units, hazmat units, ems personnel, police, etc. Pretty entertaining to those of us safely across the street in the engineering complex. Well, it was entertaining, until we started to wonder what forgotten relics awaited rediscovery in the dungeons of our own castles.