I have heard that there is lsd called cartoon acid which supposedly you see cartoon type hallucinations etc. I heard its really rare to find and dangerous to use. How could there be such a thing? I thought lsd was like all the same pretty much, now people tell me there is two types? I also heard that if you see an anvil on your trip it means a bad trip will occur and theres no way to stop it and if you see the anvil its almost certain you will die. I don't believe this..Is this true?