Have you ever heard of ‘You’re the Guinea pig’? It is an obscure PSA believed to originate from Singapore, in which a man is strapped to a chair whilst being forced to take a drug which makes him violently convulse until his eyes roll into his head! All the while accompanied by some unnerving music which was either made for the PSA, or has completely faded into obscurity.
PS, I have no tolerance (or guts) for seeing it again so please don’t add any pictures or gifs.