Not feeding the pigeons

I couldn't work out why this lady was eating a meal outside the National Theatre, not inside in the warm of the foyer café.  But I didn't hang around long to find out as a coffee and brownie had my name on them in that café.  I was in London with Mrs B who was meeting a cousin she had not seen for nearly thirty years; I left them to it and wandered the South Bank and the Strand and the bridges between.  But it was cold and wet so I enjoyed the National Theatre's café and its huge foyer which seemed to be free for anyone to use for work or leisure.