Final answer:
Mr. van Daan's hands are described as smothered in blood and he has a red face due to injuries and bleeding caused by violent or intense situations.
Step-by-step explanation:
Mr. van Daan's hands are described as smothered in blood and he has a red face because he has been involved in violent or intense situations that caused injuries and bleeding. The passages provided describe instances where Mr. van Daan is wounded, such as being shot or falling from a staircase. These injuries result in bloodshed and contribute to the description of his hands being covered in blood and his face being red.