This only happened recently, around the middle January this year.
It was a weekend afternoon and I had nothing to do; I was just playing warcraft, Dota. In our room, my computer table's backed against a solid wall, meaning it has no door nor any window, just this table and my cabinet.
I was killed in the game so I was just waiting for my character to return back to life, when suddenly a boy came out of my cabinet. The doors didn't swing open, the boy just passed through the solid wood and eyed me. I felt my eyes widen and my teeth clenched hard. It took only about two seconds then the boy turned around and walked through the cabinet again before I could even scream or run. After the boy vanished my brother came bustling in the room and yelling, "may nakita kang bata?!" (did you see a boy?!) with a surprised look on his face. I faced him but after what just happened there I couldn't open my mouth to say anything. The way my brother stared at me tells me that the expression I had on my face must have answered his question.
My brother said he was working on his car in the garage, just at the other side of our room's wall, and then he saw a boy standing next to his car. Our gate is always locked, so there's no way an outsider could get in without anyone from the inside opening the locks, and the garage is just few meters away from the gate. If someone came in, my brother would be the first one to know.
He said he was about to ask the boy who he is or what was he doing inside our compound when he ran and he passed through the wall. He said he could not believe what he just saw, that's why ran to me. I don't know who that boy was and I don't intend to find out and I don't want to ever see him again passing through any of the walls of our house.