I just found out from my W's sister that their cousin's D6 (that would make her W's 2cnd cousin), who we have known to have had mild seizures and other psychoneurological difficulties since at least 2 years of age, has been recently diagnosed with NLD/NVLD (non-verbal learning disability) and ADHD.
The curious thing about this new fact coming to light is that NLD is very closely related to Asperger's Syndrome (AS). And there happens to be zero blood relations between this poor little girl, W's second cousin, and myself. Thus if one is so certain (like my WAW) about finding a hereditary link for my S6's AS, they need not look much further than W's own family. (Not to say that AS might not be in my family too, but if W was trying to pin S6's condition solely on me, she's sadly mistaken.)
If W persists in pushing me into getting screened (I am on a waiting list, and that takes time) I may lose my cool and tell her what for. So far, in recent weeks, she's eased off -- hmmmm, I wonder why.