haystack, so you are saying the trade was done at 9:51 and it took the market maker (WINS) a full 12 minutes to drop the bid because of that 100k trade.
look, tomorrow do yourself a dummy trade via your online broker. You will see you can buy the stock for around 9.7p (which according to advfn would appear as a sell). This morning i could buy 100,000 at 9.67p if i wanted to (once again if i had bought the trade would have appeared as a sell on advfn).
do that dummy trade and come back and post your experience here.
you still havent answered the question as to if you are going to short eurodis ? you seem so confident its going to fall (or even go bust)