(Don´t) Serve Yourself

This is what I found the other day when I left the condo, right beside the door to the street.

And no one nearby.
Luckily the main door was closed.

In the house all the stuff should be safe.

But how often does this happen:

Someone opens the door and fixes it, brings in his push-bike, down the cellar, is too lazy to step down the five steps again to close the door.

The person very likely stopped the car right outside, warning lights on - no worries, common practice here, others take other routes, no two cars can pass each other here.
He unloaded right beside the door cause he lives on 5th floor or such, closed the door, hopped in the car and is gone for... however long it takes to find a space to park the car (my top was over 40 minutes plus walking 10 minutes).

I´d not be that trustful (anymore) to find my groceries still there...