| agree. Especially with #3 "understand what boss wants" From the way OP phrased the question, it sounded like the OP felt the manager "owed" the OP. As in, OP feels going to the conference is a must, "a given", a "constitutional right", and that the manager "wronged" him by not letting him go. It's a very childish way of viewing the world. As in, I deserve to go to Disneyland. My mom won't let me, so I will now get a "thick skin" to "manage her". An adult would be thinking of helping mom pay the bills. OP focuses on himself, on what he wants. There is no mention in the question of what the manager wants. It screams "me me me" |
OP's employer does not own them - they have a right to a private life.
While they certainly could not want OP identifying themselves as an agent of their employer when giving a talk, OP is entitled to use their free time / vacation days as they see fit.