I also experienced this spirit of the glass thingy and that was pretty scary at the age of 13 with friends, from then on, I promised to myself that I will not do it again unless I'm drunk because I don't want to see faces I don't know, they were vague and scary and when I came back to my senses I told myself that, that was just a dream but no, next time I want a tuba first before doing so😂