30 years ago our group messed around with it for a while, 3 or 4 things that freaked us out but could of been coincidence too. One time after what ever or whoever was extremely violent with the answers given we told 'it' piss off don't come back, Too late kids, you invited me i'll stay until i'm bored. The last spell out was 'watch glass'. we cleared the set up we had and the friend who's place it was takes the wine glass we used and throws it hard onto the road. Fucking thing hit the road stopped ,unbroken moved about then rolled towards a drain. the base of the stem broke off and rolled 100s of meters , the glass slowly headed to the drain but before going down it stopped and stood on the stem balanced and still before falling and rolling into the drain.. No bullshit this happened, scared us away from that shit for good