I did exactly what you said but it think I shook it too hard. The foam tore apart, the lid and the ooths flew off the window on to the street and got run over by a bus. Apparently the lid was hard enough to blow one of the tires, which made the bus swerve uncontrollably into a van carrying propane tanks. The resulting collision spilled a lot of fuel that ignited causing a massive fire. The heat made the propane tanks blow one by one. A piece of one tank flew meters into the air hitting a ballistic rocket attached to the wing of a military jet on a drill mission. The rocket malfunctioned and blew up destroying the wing of the plane. Countries around the world are pointing fingers at each other, acusing them of bringing down the jet. Nuclear warfare follows.
The good news is, the ooths are still intact but the lid was destroyed.