Today (actually yesterday as per the clock) was a very bad day for me. I had a not very pleasant conversation with a very senior person in a seminar, who was my teacher, too. Later I expressed my apologies for making him feel bad without changing by opinion on which we disagreed. But he is a powerful man, some other people told me it will go bad for me in future.
Then in the evening I opened my laptop (it was overheating), cleaned it, applied new thermal paste. When re-seated, the HDD is not powering on.
In the morning I will work on it again.
Two bitter feelings in a same day, not a very usual day it was.