Blender Blunder

Another appliance has bit the dust at my hands.  What the heck is wrong with me!?!?  I had the blender on the counter and a watermelon.  I set something else down and the watermelon rolled into the blender, pushed the button on it.  I had just cleaned the blender because I had an Arbonne shake and I had put the spout inside the blender along with parts of the lid.  Well, when the watermelon turned it on, the blades spun everything around, which broke the blender itself and sent shards of sharp plastic flying EVERYWHERE!!!!  It was insane!!  I yelled some things and the kids all came running to see what was the matter.  Now, I have to get a new blender....AGAIN.