Ok, so it seems my Luke Wilson 15 Arm Tree seems like it is coming apart at the join, where the glass tube comes off that you suck the vapor out of. There is what looks like a hairline crack all the way around the outside of the join. It seems very even. Is this a crack? Should I be worried? I can't even get a clear picture to post here of the crack because it is so thin. I bought it in the classifieds here, from @Frederick McGuire It has never been dropped or bumped! I hope this is just something silly and not the glass cracking? If it is cracking, is there any way to get this fixed?