I've been thinking about this as ds3 has several sorts of stuck questions which all need dealing with differently
First there's the delusional- 'I built the world'. Now clearly he didn't, but we have had to develop stock answers to it as a denial causes massive breakdown: so it goes:
'I built the world, I bult all the hosues'
we say ' In X'sworld X built all the houses
DS3: 'I didn't build the world.'
'Who built the world?'
'Jesus built the world'
(former CofW schol)
(dont be imrpessed at ther language: it doesnt function that well in non delusional matters, sadly)
Deviating from stock answers causes pointless meltdown and panic for ds1, we just se it as a reassurin stim and now mroe.
Type 2- repetitive demanding stims: the minute ds3 gets in he starts chanting ' I go on puter'.... this obv means he wants his wind down time on wii or computer that is essnetial for bringing him bac after a school day. there's no point using techniques, it won't stop until hebgets his 20 minutes: his brain is like a stuck record and can't progress without the necessary action.
Type 4- reassurance... this is the 'home now' type. We get this every 2 minutes when out, and we simply ignore until it is time to go home. DS1 cant seem to think in steps very ell, so keeps asking the question until it becomes appropriate.
Many repetitivequestions can be dealt with by a picture board I wuld think- if we kept getting a 'what that?' or similar a PECS type device on dispaly might well deal with it,much ike a visual timetable can with other questions. 'school day?' is dealable with like this as you only need a calendar with a tick or cross if your child can process that, though ds3 depends purely n the clothes he is dressed in for that info