I live in a Victorian semi, bay window on front, front door at side down a (private, mind only) path that also leads to my back gate. Neighbour that I'm not joined to has same so their front door is opposite mine they also have a path to back gate, path is split in half by 3foot wall all along.
So, lots of extra rubbish recently, dh works abroad a lot, I don't drive so have to wait for him to come back to go to tip. Our wheelie bin is outside our front door and about two foot to the right. Currently full, dh in poland.
Bear with me it gets more interesting 
I put two black bin bags out the front of my door and to the right by the bin.
Went out last week, came back and one of the bin bags was right in front of my door in the middle of the steps. I thought 'weird' but was so busy just forgot about it. Friday I went to pick children up from school, bin bag my right of door. Came back, came in house. Hour later I opened door to let cat out and the bin bag is on my steps again right in the middle. Freaked out as dh still away and next door were broken into recently. Saw next door and asked them, they say not them, (I could understand sort of if was as it is next to ish their front door but would expect them to just speak to me, they're nice we get on ok) but that a different neighbour who lives opposite and a good 40/50 foot away on other side of a road, had been moaning about my bin bags.
Tonight, left house, bin bag where I put it. Went and picked children up, got back (20 mins) and there was the bin bag in the middle of my steps again in front of my door. Really freaked out as twice it's happened when I've gone to pick children up so is he watching me leave??
I know the type of person to do this is unlikely to be a murderer (!) but aibu to feel totally freaked out and scared? And what should I do?