|Nicey replies: Ross,
Thats an admirable biscuit tin running list you've got there. Also good to see that you are taking good care of your crinkle crunches. Personally I would like to see a fruit shortcake or maybe a HobNob in there to get a good all round tin.
I'm a bit of a reformed dunker myself, but when I did partake of that habit it really came down to confidence and timing, these can not be gained overnight but must be learnt. Out of the biscuits in your list I would only dunk the Rich teas, Digestives and as rank outsiders the Crinkle crunch. Dunking chocolate biscuits or cream filled biscuits is generally a no-no although I understand that many people do choose to do this. Cow biscuits are much too pretty dunk and should have the cows nibbled out of them. Gingernuts are all about crunch so again I wouldn't choose to dunk them. Of course when dunking any large diameter biscuit such as the digestive, one has a window of opportunity, whilst the tea level in you cup/mug is high enough to let you get the edge in. As the tea level falls much more dunking and nibbling are required to access the tea. Don't feel bad to ignore all of this if it threatens your personal enjoyment of tea and biscuits.
As for the standing up, it sounds a bit foolhardy, and I'm sorry that your working conditions drive you to such outlandish behavior. I hope that this doesn't extend to your enjoyment of tea outside of the workplace, where sitting down is certainly the optimal way to drink it.