People sometimes ask me what my name really is. I tell them that that is my real name.
The tend not to believe me, but it is true.
[WHY CAN'T THE DOCTOR HAVE AN INTERESTING NAME?]
I am an eldritch alien, after all. Also, I must keep my first name a secret. Otherwise, people would know the true name of the Doctor.
Other times, people ask me where I got my degree from. I got my PHD at GhidhbdkJ-DNkdkO348hdke University, on the Planet HEhdkMF/NMhfens.