Long story short, I ordered a small amount of weed on one of the stores (a domestic order) but forgot to add a destination address to the order. A bit later I sent a message to the vendor with my name and address. Today a postman knocked to my door early in the moorning asking if I'm Mr XXX YYY, I said that I'm not because it isn't my name and he's gone with the package. I still was a bit sleepy and couldn't think clearly. Only after some time I realised that it's about the day when my order is supposed to be delivered. I immediately thought that the vendor just didn't check my message and could send the package to my address (which he could know because I ordered from him before) but with a different name.
What shall I do now? AFAIK undelivered packages get to the return centre where they can be opened if they don't have a return address.
If that does happen just be glad your name isn't on it