Well, you can't behave in an uncivilized manner, and then expect someone to want to pay you for the privilege of having you around. Particularly if you are also low-skilled or only have skills which are extremely common and therefore low-valued. Menial or "low-skill" labor is not low paid because we don't need it. It is low-paid because the market is perpetually glutted. If you are unable to differentiate yourself to even the tiny extent of just behaving yourself while at work, then you are of course disposable, because literally thousands or millions wait to replace you. Why would any employer want to pay you to come do drugs at work, endangering everyone there and causing them liability? They are not your Mama.