NC for this. Ds 21 months likes to stack things up, organise things, tins, tubs etc. He was doing this at mil's today and she suddenly said "I think he is autistic". I found this a really strange thing to say and was upset/angry at the time. He doesn't particularly like hugs and kissed and I think she feels she needs to rationalise this by labelling him (when really he just doesn't like cuddling someone who stinks of an old ash tray!) should I have said something?