This is my first FML, so I'm actually really surprised that it got posted. I collect robots and the robot in question is a robotic dog called a Genibo SD which I was partially disassembling to replace its battery at the time. I had to go searching for the parts immediately since that night was trash night and if I had waited until morning, they would have been long gone. I did leave the bag sitting on a table where I had been working, but it was next to a bunch of screwdrivers so I didn't think it would be mistaken for trash (though I admit it was partially my fault for not moving the bag somewhere safer). I'm not upset with my mom, she's a great person and had no way of knowing that the parts were important. Aha, I obviously don't enjoy tearing through trash bags in the middle of the night, but it was definitely a better outcome than if the parts had been taken away by the dump truck.