I mean haven't you ever had/heard about that guy who would describe what an amazing experience he had on drug X when someone gave him fake drugs. It's easy to

I mean haven't you ever had/heard about that guy who would describe what an amazing experience he had on drug X when someone gave him fake drugs. It's easy to distinguish if you tried it, otherwise autosuggestion etc. could play it's part of you actually tell the placebo group you are giving them pshychodelics (not disclosing/mentioning placebo)