DHL is mostly subcontracted to local companies. Yes, drivers do that when they have a residential address, because they cannot pull the same trick with companies at factory/office hours, they hope it goes unnoticed with individuals.

But I also have a DHL driver doing the opposite: you stay at home all day and nobody rings; then you notice that the parcel is marked as delivered on the website. What? You get outside and you see the parcel was thrown in your yard over the wall/fence/portal. You go back to DHL website and you download the receipt, to discover a beautiful fake signature of yours forged by the driver.

So he just didn't bother to ring the doorbell to save 20 seconds. He saves 20 seconds and you lose several hours waiting for him...

Also, in this subcontracting company, the drivers have very bad equipment, they do not have winter tyres (and we are talking about a mountain area...), they do not have enough large enough vans, so the drivers try to ditch as many parcels as possible in any 'possible' way because otherwise they have no room for pickups...

The driver even showed up one day with a regular compact car... He had to come back.