Had this existed when I was a wee lad, I almost certainly would have gotten beaten up daily in school from wearing this most excellent piece of luggage. The nozzle even has its own little pouch for fitting things like small umbrellas or lead pipes to defend yourself against the bullies. It's awesome that it even has a rope connecting the two pieces together when that is functionally unnecessary.
Truthfully, those that purchase the backpack have nothing to fear other than carrying an unlicensed nuclear accelerator on their back. Careful when you switch it on.
Let the Ghostbusters quote-fest commence.