Possible Fally Massacre Revival?

[Buddha]

Recently I ran into several people who were walking around in GE world 2 with blue skulls, and I was wondering, if this glitch causes Runescape to think you're still in BH - does this mean is there a way that you could attack people (maybe even get items?) anyone who wants to test this I'd love to hear your conclusion!
Also, I haven't been able to get to BH and try this out yet I am not at home, so could anyone tell me how one goes about having a blue skull outside BH?