Thanks for reminding me of that.It's all too easy to forget some bad experiences while focussing perhaps too much on a good one.When yor TA is a co-operative good-looker,it's great in the classroom.Time flies.
But when you're landed with one whose disposition is the opposite of her self-chosen English name,I'm thinking of 'Sunny' here,it can be quite stressful,as you've said.There's nothing worse than working with someone with a long face day after day,especially if she is a good-looker.I don't know why such TA's are sometimes so.Maybe the Chinese boss hasn't treated her very well at all!