Grandma had a bakery that is now closed down. Paid for a dumpster cause bakery produced a lot of trash. Always had folks putting stuff in the dumpster and they did not pay for dumpster.
This fella bringing an old mattress out and putting it by or on or in the dumpster can cause the garbage truck to not empty the dumpster when it swings by for the weekly visit.
Being an ongoing problem the garbage truck company had probably warned the fella renting the dumpster to knock it off and/or just had a big upcharge for large bulky things.
I can see how this could escalate to this level pretty easily. Takes some time, but not uncommon.
As far as the screams and wails of the lady, well maybe she should consider that words mean things and she does not happen to know what the future holds.
If a camera had been set up and one neighbor sued the other neighbor, do some of y'all think it would have worked out any better?