Honestly, unless it's someone who hates the band and took them for spite, they are going to be noticed by other metalheads very quickly if you happen to have them "sitting around", and I highly doubt even you thinking it would be "cool" to use alexi's guitars for a gig, would survive long enough to avoid getting beaten to death. It's a very stupid move to make, as this is an ironic situation if you, the thief, are a fan of the band. You take Alexi's guitars, and yet they are in the process of writing and recording new material.....what the fuck is wrong with you? You think you're a big shot now, but they will find you, and I'm sure you'll wish you were better of dead. 
