The last tenant of the Armstrong Manual Training School building, an adult-education center, moved out in 1996. In the following years, neighbor Kathy Davis says she has watched drug dealers and prostitutes use the shadowy spaces of the school’s parking lot on the 100 block of P Street NW to ply their trades. After the D.C. Public Schools and the Office of Property Management ignored repeated requests to close off the lot, Davis, who lives across from Armstrong, took over vacant-property-control duties herself—chaining the gate shut with a padlock. An attached note told authorities to contact her if they wanted it off. The D.C. Council is now considering selling the school to the Community Academy Public Charter School, which wants to conduct an $11 million renovation. So far, though, the buyers can’t park there; Davis’ lock remains in place. The note, however, has been removed. —Mike DeBonis