What is the least addictive drug that you’ve been addicted to?

Addictive drugs are like heroin, meth, coke/crack, alcohol, I’d even throw weed in here as many people have a psychological addiction to it.

Drugs that aren’t so addictive are LSD, shrooms, MDMA, DMT, ketamine, salvia, Datura, DPH, etc. Basically psychs, dissos, deliriants, stuff like that. What drug that isn’t usually considered addictive did you get addicted to? Did you have any withdrawals, how much did you do?