Uninspiring Short Stories - The mutated chameleon horse

The mutated chameleon horse was tired of speaking to this relentless doctor.
'I just, I just feel like I need to constantly change in order to survive.' he spoke solemly to the doctor.
The doctor cleared his throat.
'Now we both know son, that until you can show the proper signs of understanding exactly what you are, we will continue to have this nonsense chatter until the cows come home.'
'Neigh.' the mutated chameleon horse reluctantly sighed as he looked toward the barricaded window and turned the colour of despair.