<human>: Can you condense the text into a few key points?

My neighbors have become a real problem for me lately. They have giant dogs who they let out and let them run around our front yards all the time, and they end up shitting all over my front lawn. They never clean up their front yard (or backyard) and leave trash and discarded toys all over. Our front yards aren't seperated by any kind of fence so there's no keeping them out. I try really hard to keep my front yard clean and they are just complete slobs who ruin all my hard work. I've tried cleaning up the dog crap from my lawn and putting it on their front step in a bag and they just ignored it (and then eventually tossed the bag into their front garden) How can I get through to my neighbors? I don't really care all that much about my relationship with them, they are just assholes and have shot down every attempt I've made to be friendly with them anyways. I've left them a note about it but I don't think they read it, or maybe they ignored it.
<bot>: asshole neighbors are slobs, their dogs shit all over my lawn and they leave garbage everywhere, want to get a little revenge