I rock, apparently

Picture the scene, I'm all ready with a bowl full of chocolatey snacks and the un-intentional Halloween costume.
But no one is knocking on the door.
I'm not sure of the protocol on this, never got around to asking the neighbours.
Quick check out the window reveals that the other houses have the outside lights on.
So, like a cartoon lightbulb going off, I get it and put our outside light on.
The trick-or-treaters start turning up, first is a group of about 5. One of them, a boy of maybe 12 had the scariest mask I have even seen. It was a dark brown/grey colour, a similar texture to Freddie, with a long hook nose. The kid had even put face paint around his eyes so they blended in.
So, they all politely helped themselves from the bowl of treats.
A few more little kids, some good costumes, some frankly sub-standard.
Then 3 older kids turn up. The ringleader dressed as, well, I'm not sure really, big avaitor sunglasses, hair slicked back, bit of an Elvis sneer being attempted.
I tell them to help themselves, as everyone else has.
Elvis-lite looks at me and says 'Really?"
'Sure' says me.
That was his cue and he didn't hang around. Both hands in the bowl, his 2 friends slightly slower off the mark, join in and in 2 seconds flat the bowl is empty.
As Elvis-lite is turning to leave with his spoils, he says to me ' you rock!'
There you have it, confirmation.