Detecting design or intent in nature

[Surgenator]

Your horn example is not heredity. Hense, it is not part of evolution.

I don't know why the woman grew the horn. Maybe a gene mutated. Maybe something in the environment activated a dormant gene. Maybe it is just cancer(I suspect not though because she is growing another horn on the mirror side of her forehead). It is a small but very noticeable change. Noticeable changes do not change what something is. Your claim that the car did not evolve because its rear end shrank in one year doesn't hold water.

List of risks for developing a cutaneous horn.

According to reports, men have been found at risk or have more occurrences of malignant cutaneous horn development at the base lesion. Another risk for cutaneous horn is age; the old-aged individuals as victims of the skin problem. Other risk factors include the following:
History of radiation exposure
Immunocompromised
Artificial tanning beds enthusiasts
Works outdoors

Source

Notice family history is not on the list. Your example is not heridity and not passed down to famnily members. It is correlated his prolong radiation exposure and likely a local growth like cancer. It is not evolution because it happens in one generation and not passed on to other generations.