This happened in Reynosa, Mexico, two years ago (summer, 2008). As a background, my family and I have always experienced ghost sightings, among other things. Sometimes they want to communicate or are in need of help. Sometimes... Sometimes they just want to have fun. I am my family's defense or barrier, if something, ghost, demon, entity, wants to harm them, they have to go through me.
I recognized my house and the street as I got higher. The wind is different when you float, it's almost liquid. I was woken up by a laughter, a deep, almost gargling laughter. As I looked through the window, I saw a shadow pass by at an incredible speed. It appeared to be as of a woman.
A few days passed, the laughter and the shadow were still fresh in my mind. Suddenly, I remember that on last Sunday, a day prior to laughter, a woman passed by me on my way to the convenience store. Her eyes were glued to me. Middle aged, short, black hair and with a dark smile on her face. Her clothes reminded me of a "curandera" or "bruja" (witch or old hag). She said something and chuckled as she passed by me. I could not understand a word.
While dreaming, Saturday afternoon, the Woman entered my room. I was watching the tv, even though only a white glare came from it. She had a rifle and started shooting at me as I got out of bed, when knowing that every shot were missed, she ran into my mother's bedroom. Went after her, and as I grabbed her by the neck, the same dark smile appeared on her face. I started punching as hard as possible, but could not make any damage. With incredible strength, gradually she approached her face to mine. Close enough, her mouth opened and her tongue entered my ear. Disgusted, I released her. I suddenly woke up and saw her getting out of my room, running. I ran, trying to catch her, but with no luck. Both my parents did not saw her pass by, which was impossible as the main entrance/exit to my house its right by the living room, were both my parents were.