[DSP] Maintaining Psionic Focus

[BossPaeGan]

How many means, official and 'as close to official as likely to get', are there for a character to lose Psionic Focus?

On page 27 of the Ultimate Psionics book, the Psionic Focus entry, it states that,
"When you are psionically focused, you can expend your focus on any single concentration check you make thereafter. When you expend your focus in this manner, your concentration check is treated as if you rolled a 15. It’s like taking 10, except that the number you add to your concentration modifier is 15. You can also expend your focus to gain the benefit of a psionic feat — many psionic feats are activated in this way.
Once you are psionically focused, you remain focused until you expend your focus, become unconscious, or go to sleep (or enter a meditative trance, in cases such as elans or elves).
You may still gain psionic focus even if you have depleted all of your power points.
Expending your psionic focus to power a feat, class feature, or any other ability only powers a single effect. You cannot gain the benefit of multiple abilities that require expending focus by expending your psionic focus once; each effect requires its own instance of expending psionic focus."

Now, I am of the mind that once a character has Psionic Focus, he/she has and maintains it until it is used or character looses unconsciousness. However, another declares that the character looses it from additional methods, namely; Being Dominated, Taking a Critical Hit, Taking Damage Exceeding 1/2 Character HPs, Failing Concentration Check Due To Failed Concentration While Manifesting

Of the new and alleged potentials, I can logically understand one as having a possible effect on Psionic Focus - Being Dominated, as it alters, to some degree, a character's mental state, though should definitely allow a Concentration Check in order to retain Psionic Focus.

So in a nutshell after all that, the basic question is as mentioned at the beginning:

What are the means/ways that a character can loose his/her Psionic Focus?

[Gobo Horde]

BosPaeGan wrote:

However, another declares that the character looses it from additional methods, namely; Being Dominated, Taking a Critical Hit, Taking Damage Exceeding 1/2 Character HPs, Failing Concentration Check Due To Failed Concentration While Manifesting

First off, what is being described here is the “Rule of Cool”, which often includes things that make thematic or logical sense, but aren’t in the rules anywhere. If you guys want to come up with rules like that then by all means, have fun!

That said, there is absolutely no “rules as written” that suggest Psionic Focus has interactions like the ones you/he describes, or anything like them. :/

Instead, I think this is a thematic/interpretation thing here. Instead of considering Psionic Focus as some sort of “concentration” (hence why the argument that it could be disrupted like concentration can), you’d be better off if you considered it a one-use, unlimited duration spell effect. Kind of like casting a contingency effect on yourself?
Basically, you spend the action to “cast” and store a dormant effect in your mind. It lasts indefinitely and just sort of sits there. (If you removed your need to sleep, you could activate it once and it could stay charged for weeks…) Then, at some later time, you decide you need it and “activate” it, which uses it and expends it.
It doesn’t actually require a concentration check to keep using (neither does Contingency). As long as you don’t fall asleep, it’s just kinda there. :/

[Gobo Horde]

That said, the one way you could force it’s removal is if you dominated someone and then specifically ordered him to expend his focus.
…Which would be weird thing to order, after going through all the effort of enslaving his mind in the first place…