It's stupid to even say such a thing as there are many buildings that have multiple entrances and exits on multiple streets. One can go in one and out the other plus all those retailers would say - let's not have a marathon if I have to close down. The Prudential shopping complex and office complex is on Boylston St and they have thousand of workers there as well as the area around the Boston Public Library. Plus they have little alleys in back of some buildings there as the next street over is Newbury street where they have very high end shops to waste all types of money on clothing and shoes that are way overpriced.