Suspect IABU, but it winds me up so much.
Next door is in 3 flats, and their bins annoy me anyway - always overfull and the recyclying blows into my garden.
There used to be a parking space on the road, which I'd manage to grab about half the time. That space is now gone, as new tenants moved in next door and got the landlord to take down the garden wall and concrete the lawn - all contrary to planning, but I don't feel like having a row with the landlord. But...every so often they put their wheelie bins in front of my house. Not blocking my drive, but it really pisses me off. I'm sure they're legally entitled to do it, but every time I grab their bins and lash them back in front of their own house.
I know it's petty, but being nice and neighbourly got me walked all over by the same landlord in the past.