That is exactly what happened to me. I had to make a special request to HR to foot the bill for my PhD since I was the first in the company to use tuition assistance for a PhD (many others have PhDs already but in microbiology and engineering). Since the cat was out of the bag, I felt a drive to finish. As far as teaching, I have the students call me Randell. I may change that for the graduate level classes I teach but, unless they read my bio, they might not even know I have a PhD. I say press on DOCTOR SURF!!!!!!!