I've done 120x that my buddy got online, and we were trippin balls. Once we took my Mercedes to the mall at about 10 pm and once we got there we each took a bong hit. When the hit was just kicking in I took the bong to the trunk of my car, but by the time I got there I was tripping too hard to get it in. I remember just as I was coming out of the trip that I thought everything in the universe had been processed except for my Mercedes, which now was reduced to only the symbol on the hood that I was holding in my hand (which turned out to be my car keys that had the same symbol on them). I looked at it and exclaimed "Oh no!" because I thought the rest of my car had been ground up and lost into the universe. My buddy asked me what was wrong and I told him and he belived it too (still tripping, of course), and it took us several minutes to realize my car was right in front of us.
Also, I once held a conversation with my sofa while on 120x. It initiated the conversation by urging me to become an inatimate object (such as itself), to which I replied "Do I have to?", then it said "Yes, it is inevitable", so I complied, and immediately emerged from the trip. My uncle who was present at the time only heard my side of the conversation.