My mom told me this story so here it goes. when my mom was about 18 or 19 she was in her room in my grandparents house taking care of me ( i was just a baby) and she was waiting for my dad to come back from work ( he worked at this tourist showing thing) he always came back late so it was about 12 or 1 in the morning and she heard somebody knock on the window on the little garden they had that was rigth by her room and she turned aroun and said\" alex its that you sweety\"(alex is my dad) and no answer so she got freaked out the she said\" whats wrong baby my mom didnt open the front door\" nad still no answear so she opens the window and wen she opens it there was no one there so she got scared later she felt someone touching her shoulder so she jumped and screamed and when she noticed it was my dad the he said\" whats wrong baby?\" \"why didnt you answear me wen i was talking to you when you knocked on the window 10 min ago?\" my mom said then my dad told her that he didnt knock on the window that he just got home so she got really scared and started crying so my dad told her that it was probably the neigboor kids that he saw the outside playing with fireworks so it was pobrably them but she knew it wasent that it was someone or something.