I feel very bad. I thought I was making a good joke, but see I should avoid emoticons in future, as they are misunderstood. Anyway, It's your thread so i shouldn't step on with my goofy humor.
But, even so, nasty is a strong word, and I was surprised to be judged as being nasty to Sheila on the basis of an emoticon--but again, my mistake for making a joke (in repsonse to sheila) on your thread.
This exchange has an aspect of the drama triangle (the triangulation -- i will explain on my thread)