There has been much ado on the forum recently about trolls. In my view a troll is very like an uninvited rabbit in the garden. At first you might think he is ever so cute but then he starts munching away at your over-wintering pansies. There are three potential ways of dealing with such a rabbit. (1) Tolerate him. (2) Fence him out. (3) Shoot him. Which option should be used with trolls? Perhaps the only problem with my analogy is that a bunny is instantly recognisable while a troll is a master of disguise. Roger.