Question - do we as people who reply to questions on this board have "blanket immunity"? 

I've dealt with family who had dementia and would ask the same question over and over.  I finally made up stories:  nope, never been to this restaurant before, yup, we've been here many times, you used to come here all the time.....  I'm thinking of responding to questions on the W-2G and similar with totally off the wall answers, just to make this more fun.