I'm going to throw a pile of tree limbs into my neighbors yard
What makes you want to throw tree limbs into your neighbor's yard?
I don't have respect for him and he deserves trash in his yard.
Good neighbors watch out for each other and their property. It can be far more peaceful to live among neighbors that like and respect each other, especially when they're living in close proximity.
I'd rather do my plan instead.
You are inviting your neighbor to retaliate if you do this. Try and be more respectful of your neighbor and his property.