the office I work at is on a busy street in the city and the front desk is right next to the front window next to the sidewalk. I was in a terrible mood today. I had talked to far too many people who had toothaches and were mad they couldn't see the doctor until august. I was on a particular phone call where I was trying to sort out a mess with an angry woman when I heard a banging on the window. I turned to look, and standing there with his face pressed against the window was an old homeless man. I imagine I looked confused and slightly annoyed, but he just stood there with the biggest grin (which included only one tooth) and waved at me. as soon as I cracked a smile and waved back, he walked away. 

it was strange and funny and it brightened a somewhat awful day.