Do not open your window(s) for anyone you dont know personally,particularly in high crime areas. Over the years 17th and Derry Sts. has seen an increase in criminal activity. When approached by a stranger at an intersection, if you dont feel safe, always allow enough space in front of you for an escape,blow your horn incessantly to draw attention, remove yourself immediately from the area. Call police with as best a description you can of the suspect, if a crime has occurred. Be blessed and be a blessing!