Don't know what "CBD" is - and don't care to.
Went to a rock concert in the late 60's, pushed my way toward the front and middle before it started, and must have peeved someone. At the band's first note I got stuck in the butt with a needle, reeled around, and nearly instantaneously saw the musician's notes from their 50 amp fused speakers in continuous warped colored lines, have NO CLUE who performed, have NO CLUE who did that to me, memory was wiped clean, and so far as I can tell, have had no other ill effects. Well, maybe, thinking out loud, I am ornery and hard to get along with as a result...scary to think how that could have ended.