Ds1 has ASD, he's 9. Has just started putting everything in his mouth again, used to do this when he was much younger & lick everything (including mirrors, windows, shopping trolleys) but hadnt noticed it for ages & thought he had grown out of it. We have a sand timer & it wouldnt work because the sand was all clogged up & he admitted it was because he keeps putting it in his mouth. Anyone else had this with a 9 year old?