A diabolical post in the second round of Sheryl Gwyther's 52-Week Flash Fiction Challenge on Facebook. Don't worry, I am assured that this cannot actually happen, well, it's unlikely...
Goodbye Doctor (42 words)
The regeneration was complete, but he had never felt like this before.
Dark. Mechanical. Cold.
What he saw in his reflection could only be described as diabolical.
He knew deep in his hearts that there was only one way out.