No my T has never done any of the above... And I wouldn't like it if she did. Okay yawning in the evening few times - this I could understand, I, for instance, yawn when I am very stressed (that's a pretty cool symptom as everyone thinks then that i am extremely relaxed), so I wouldn't be extremely bothered if my T did it but if it was often, I guess I'd suggest changing session time or bringing coffee...