This may be a known issue, and I know there was some talk about it a long time ago where one could dodge their own incoming heals, but I thought it had been fixed. Anywho, yesterday on my nightblade I was just wandering aimlessly, and I started to notice that, even out of combat, if I had Double Take active and started using Sap Essence, my character would go through the dodge animation. I don't know if it was simply an animation issue or if he was really dodging the heal, but that's definitely worth looking into.
Anyone else experience this?
P.S. Yes, I did submit a bug report