Some of us have been white and numb even longer.
If you leave it in too long it will get water logged.
did you stick it in your but
You likely have Reynolds syndrome, a benign nuisance that can make it difficult for warm blood to return to smaller appendages.
Try using all 10 of them next time
Waving at the neighbour again huh
well du'h.. your fingers are common general knowledge after all?..