Slater
Headphoneus Supremus
Yep, I occassionally get tagged for duties on things but seems to be more likely Fedex than DHL for that. Not sure I have ever been hit with customs duties on e-packet but a couple have been cut open for inspection.
When they do that, they're almost always looking for the crazy drugs coming mail order from China, like bath salts, flakka, etc. Sometimes the outside of the packages have traces of that stuff (from contact during the shipping process), so it sets off the alarm bells and they set it aside for inspection.
Heck, the majority of American currency has trace amounts of cocaine on the bills (true story). Once it's contaminated it's pretty much there forever.