Is there a cold joke that can freeze a person's nose into ice? [in urgent need]

There is an old lady in a mental hospital.

Wearing black clothes and holding a black umbrella every day, squatting in front of the hospital.

The doctor thought: to cure her, we must start from understanding her.

So the doctor was dressed in black with a black umbrella and squatted there with her.

The two men were silent for a month.

Finally, the old lady said:

I'm sorry ...

Are you a mushroom, too