A workman was in a serious condition in hospital last night after falling from a tree in Happy Valley. He fell while trimming the tree at the three-storey house of former lawmaker Ho Sai-chu. The 19-year-old man hurt his face, back and limbs in the 20-metre fall at the mansion in Blue Pool Road at 2.10pm. He was taken conscious to Ruttonjee Hospital. Mr Ho, a member of the Liberal Party, is a member of the Chinese People's Political Consultative Conference.