@nonoise
with respect, i would remind you (and all of us) that trolls, like the ones on this thread, live off the oxygen that others give them
i know it is hard to not do tit for tat with these sad, unconstructive folk, but i do think it is best to just not engage (even though i fall into that trap sometimes too, but i try to catch myself)
after a while, without oxygen, they get bored and move on to some other thing to disrupt