I would hate to have a conversation one on one with this guy.. I would end up bitch slapping him.
Dude- I get my neighbors sit all the time- sometimes I will open it to see if it is something I might want- if you live in a apt complex they probally drop the gear at the wrong door and one of your neighbors returned it.
If you just set it outside your door-- where do you live? I will be by shortly..