"If you get confused, don't panic, just slow down, sink your chi, ground, and you may remember the next move before you get to the end of the posture!"
Kalamondin also said:
"I'm glad my advice was helpful, though I've never thought of myself as "fatherly."
Your advice along with Pamela's was very astute and during my exam your exact words came to mind. First quote, not second one LOL.
In regards to practicing while angry (or perhaps even highly emotional), yours is a very helpful observation. My teacher explained that if the energy or strength comes from the root, it is ok. If it comes from elsewhere (mind, muscles, body) it is not ok and the center will be/has been lost. Indeed, having the need to explicitly control the effects of adrenaline and the mental effort to do so is also not conducive to remaining focused and centered during form practice, which is tough enough as it is.