Don't you just hate being healed?
I needed to figure out a better emoji. As a cloaking NB main I actually don't like being resto healed at all, neither in nor out of combat. That said, I'm grumpy and was partly laughing at myself. In combat it can give away your location. Not 100% sure with enemy animations nowadays, but I think I've seen it. Out of combat it knocks you out of music or dancing animations.