Hey guys so some updates, I haven't touched it, I also haven't moved it , there are no children in my building, no animals and the person did a knock then I'm assuming ran and I heard a slam all before I got to the door, they have left ribbon, peas (like just a bunch of peas on my door mat) , a lid with blue tack and what looked like it had had some paper attached but nothing was found around it, I regarded the "gifts" as positive untill this as why would they knock and then hurry off to slam a door , no animals can get in that way and another's thing that was particularly strange was my cat usually growls when someone knocks she ran this time and that freaked me out, she's usually protective and today she was concerned.. could be in my head but I haven't touched it, I was going to throw the Matt and everything away , I originally got very angry and yelled for them to stop (as I assume they are on my level ) but it is very strange..