Well maybe he just got a bit ticked off considering you moved his stuff and then promptly left your things there for 3 days... Or have I missed something?

I think its quite normal that you try not to leave your clothes in the drying more than approx 24 hours... or am I too swiss?? After all you do share the space... I must admit, I sometimes forget my laundry for a few days but then have no issue if someone's moved it as long as they haven't scrunched it up on the floor...

In fact, one place I lived in my kindly neighbour used to fold my laundry for me

If you think your neighbour was unreasonable then go and speak to him and try to understand what his expectations are... if they are unreasonable (which they may well be) then you choose if you are going to fit in to the "swiss life" or not.

Keep in mind, idiots and a***h***s are everywhere not just here...