This happened when I was 15 and 3 years later I still think about it every single night before I fall asleep. I was home alone (which I hated) and my mum was at the gym taking a class. It was about 6 o'clock at night and quite dark, so I had all lights in the house on including the automatic porch light - just in case. The screen and wooden door are both locked. I decided to have a shower. When I got out, I walked out of the bathroom to my bedroom when I heard two knocks on the big glass window next to our very heavy very old wooden front door. My mum usually does two knocks and yells out "it's me" before unlocking the door and coming in. I heard a voice call "it's me" but it is definitely NOT my mothers voice. I chucked on a tshirt just in time to see a man walk into my house and stand at the doorway. He threw my dog a biscuit and just waited. Scanning the house and staring. I walked out into the hallway asking if I can help him and he doesn't look too shocked to see me. He asks me if "Tamika" is home... Nobody in my family is called Tamika, we have lived here since the house was built, and we know all or neighbours very well and by name. Nobody is named Tamika in this area. I asked him what he's doing in my house and he said again "Is Tamika home?" I repeated myself as I started to realise something is really odd about this situation. I glanced down and saw something in his hand and can tell straight away it's our spare key. I started walking towards him (I wasn't scared at this point which is weird because usually, this kind of thing would terrify me) asking how he got into my house. He said it was unlocked. I said it most definitely wasn't. I asked again how the fuck he got into my house and before he had a chance to answer he turned around and sprinted out the doorway down the end of the driveway. I ran out onto the front garden to see him still sprinting down the alley way next to our house. He poked his head over the fence and says "Sorry love that must've been scary for you" before winking and running off again. I ran over to my neighbours house and as I'm explaining what had just happened, I saw him again. He walked down the alley way grinning the most sickening, horrible, terrifying grin I have ever seen in my life, as I screamed out that that was him! We called the police but there were no fingerprints or any evidence to be found. 2 months later I'm watching a movie at 12am with my mum and we hear muffled voices coming down the driveway. We hear two knocks as mum stands up and asks who's there before hearing "Oh hi we're just looking for Tamika?" I started bawling my eyes out and we called the police again.