Agreed. He has 0 access to heavy equipment fortunately, but unfortunately that doesn't make me feel any better about the risk to his and others safety. We don't even have those cart pushers (which we should). Unless you consider a flatbed cart heavy equipment (they ARE really hard to steer and not hit anyone). He could still easily hurt himself or someone else with even those box knives we use. Hell, he could hurt someone else by dropping his drugs on the floor and what if some kid comes along and thinks its pop rocks? WTF THEN? He obviously doesn't think of these scenarios where being blitzed at work can wrong super bad super fast. I will be clearly taking some action to get him some help. I don't know what its like to be on meth, but it sounds insane and doing any job on it sounds impossible.
Also, I think I know why he never backs up at the registers anymore. I bet he sweat all over a guest's groceries and they complained. Or gave the wrong change, let merchandise go unpaid for....