I can attest as an ex-smoker who used to have a £500 a week coke habit. Two different types of addiction (physical and psychological), but both very potent.  I laugh when I hear hams whinge about food addiction. Fuck off you fat, lazy POS, I worked bloody hard to beat addiction and you are not even trying. Just using it as an excuse to hide behind.  Loved your last paragraph. That is so true.