The other day I had a lot of lp and was buying a bunch of skills at once. In the buying frenzy, rage accidentally slipped through.
I think it's a bit silly that you can instantly permanently break your character, without even an "are you sure" bubble.
It would be nice if you could somehow reverse the decision, although of course people would just buy rage for a fight then get rid of it later. Perhaps if you hadn't aggroed anyone it could be reversible, for noobs and fools like me.