When Mr. George is dry, he goes to work to brush his head with two hard brushes at once, to that unmerciful degree that Phil, shouldering his way round the gallery in the act of sweeping it, winks with sympathy. 
When Mr. George is dry, he goes to work on his head with two hard brushes, so unmercifully that Phil, shouldering his way round the gallery while sweeping it, winks with sympathy. 