ufo details report: On May 20th, 2012 in London, Ontario. I arrived home from work at around 6pm.I Noticed the neighbours cat cowering away from something that wasn't there and she hid below the wooden deck. A little strange I thought but played it off. Later I went out to smoke a cigarette and she was now scratching at the deck again nothing I could see was around her. Unusual behaviour for her again thinking not much of it.I went to my buddy's house a few houses down from mine to for a visit and left at approximately 10pm as I had a 12 hour shift to work the next day. It was may 24 weekend so there was the sound of fireworks going off in the distance. I live one block south of the CP rail yards between Adelaide and Quebec Streets.I got home, checked my email and then decided to have one last cigarette before retiring. All lights were off in the upper of a house I rent and I keep my bedroom door closed for air conditioning. So it was pitch black inside as I closed my bedroom door and walked towards the door to go outside (I don't smoke in my home) and as I was approaching the door I saw red and yellow flashing lights reflecting through the white vertical blinds. There were no fireworks going off at the time I witnessed these lights so I thought it was several cars driving around the corner. But as I got closer to the door and reached for the handle; just even before touching it the lights stopped. I opened the door real quick and stepped out on the landing of my entrance and there was nothing out there at all. Nobody going down my staircase (which is about 16 wooden steps) not a car to be heard driving around the corner, not a living soul in any of my neighbours' back yards. Just an eerie silence. I thought about the cats bizarre behaviour earlier that evening while smoking my cigarette and got butterflies in my stomach and the only explanation I can come up with was some sort of other life form, not of this earth.