I wrote this down when it initially happened because it freaked me out so badly and i wasn't sure if i was ever going to report it or not. i was home alone at the time with my dog, who has been known to bark at nothing (as dogs are apt to do) but she seemed nervous. she really wanted outside, but at the same time acted really skittish which is highly unusual for her. i took her out and when we got outside almost immediately she became very aggressive and angry for what seemed like no reason, her hackles were raised and she was growling and barking. that alone freaked me out, but then car alarms started up. there had been one or two going off in the distance and i didn't think much of it until about three or four were going off on my street in front of me. i looked up and i saw three lights in what looked like possibly a circular shape if that makes sense and i took the dog and ran back inside. i was so scared i was shaking and crying. the alarms eventually stopped but the dog and i were on edge for the rest of the night. i'm not sure if it was alien in nature but the thing itself made no noise, and i don't know what it was.