IMREITE, as far as your trainer goes, make sure she/he understands you have a sarcastic, I mean offbeat, sense of humor.
As a Trainer much senior to yours, regardless of the company, you can tell him/her that I gave you permission to be "perfectly" honest in your daily critique.
Make sure you give them MY name, my full name (Popeye The Turtle) so that any ire is directed at me.
And, as I'm sure you know as a valued member of SU, if they can't take a joke ____ 'em!
They're not qualified to train unless they have a sense of humor (and you can tell him/her I said that, too).
You might be smart in printing this out so "the Trainer" is positive it came from a VERY Senior Trainer.
You can also use my alias:
Guru and Wise Man Extraordinaire
(Certified to have "Been to the Mountain")