Having played a healer semi-recently, I know about that. I wasn't really saying Mhyrin was unobservant, I'm just saying that Dinkertot seemed to have to remind him often - and IIRC it was quite frequently like "we just rested, we're about to fight" type moments, when a healer/transmuter/bard who is paying 100% attention will throw the sanc up before the tank even asks for it.