I saw this man fishing in a lake today; he seemed to have been stood motionless for really quite some time, waiting patiently for a fish to nibble his tackle.
My first thoughts were not " I wonder if he has caught anything yet" but rather as it was not warm today, "I wonder if he can feel his feet?".
If I stood for a time in cold water and waders like that, I would soon have a desperate urge to go for a pee. Maybe he needed a pee too and now his feet are warm....