This reminds me of that great scene in Little Big Man where the old indian chief thinks he's become invisible as Custer's men ravage the indian camp.
He's askin' because people weren't talkin' to him on the chat.....least not the ones he was wantin' to talk to him
With the advent of metamaterials it’s possible you could have achieved temporary invisibility, but I wouldn’t use it quite yet to sneak into the girls high schools locker room, because you would only be invisible to microwaves rather than visible light.