I would sit down because you would obviously have quite a story to tell.
Are you Rudolf the reindeer? or just a normal 'deer'?
Of course most of you would call me crazy. But the truth is, I am Deer. But a Deer TRAPPED in a human body. I become the Animal. Spiritual metamorphosis.
Urm..I'd say are you feeling okay?
Um, how would that be possible?
I would say "Really. What planet are you from?" And sonic you with my sonic screwdriver.
'' Okay. ''
I would call a doctor.
I'd believe it, im not really human either.