You are the last person who should be talking about common sense considering you clearly have none. Common sense is to wear gloves when committing a crime that could leave fingerprints behind. Only a total idiot would try to argue otherwise. Any vendor on this site could send drugs to LE over and over again. Vendors on SR sell to anybody. LE could easily get a box and order packages from vendors over and over again. If you read the leaked report from the Australian feds it said that they did just that, trying to gather fingerprints and other forensic evidence, but that they failed to identify anybody because nobody was leaving trace evidence behind. If they pull that shit on you your ass is going to be in jail in no time, because you think that mail will not be fingerprinted, and that you cannot even leave fingerprints in the first place for some reason. I am not going to compile statistics for the number of people busted by fingerprints for fucks sake, you are the one who is putting yourself at risk do your own fucking research. Fingerprints are way more likely to sink you than hair, but you should of course try to avoid leaving ANY trace evidence. Wear a fucking hair net too! But unless you become a suspect in a rape case or fuck a minor chances are you will die without ever having your DNA stored by the state. On the other hand, if you get arrested for a DUI or any other minor crime, or get any job that requires a security clearance, your fingerprints are going to be on record with the state. Assuming neither are already on record, given the choice between the feds having my fingerprints tied to an illegal crime, and the feds having my DNA tied to an illegal crime, I would go DNA all day. I am not sure if you are really an idiot or just trolling me....