I have learned first aid by mistake because some people told me to when I was starting my career in WoW and obviously I made terrible mistake and listened to them.
Now I can't get rid of it no matter what, I was contacting like three game masters by in-game tickets and senior game master by e-mail and none of them can help me with removing this crap from my characters.
They give me some pathetic excuse that I can simply not use it but when I browse my profession pane then first aid is still there trashing my character and frustrating me to edge of my sanity.
I pay my hard earned money for playing my characters and I don't have full control over them, this is ridiculous I can abandon primary profession which is much more important but can't remove secondary crap.
At this moment only way to remove secondary profession is to delete character and create new one which shows how amateur Blizzard's development is.
They don't even give warning while speaking to trainer that once you learn secondary profession it will reside in your character pain till end of days.
I have written this post in the name of my person and several friends that share my point of view and wish to see changes in gameplay allowing to unlearn secondary professions on player's demand.