I probably don't drink enough water when I ride, but I definitely don't try to hide it from myself. Two bottle cages full. When in the desert I rolled with a big bottle of water in my trunk bag and replenish the frame bottle from there.
I sometimes consider setting up one of my bikes with a bar mounted water bottle cage.
My last century I only peed once and drank about 125 oz of water, 25oz gaterade and 16oz OJ.