In view of his behaviour, I don't think the idea of staying overnight should come into it.
Do the DGC like spending time with him? If not, why persevere with it? If they do, then daytime visits only would seem like the best way.
Some good suggestions from Eloethan.
Good Morning Friday 28th August 2026
Does anyone use the Eco wash function on their dishwasher?
World Class Museums - why are they free to everyone?


and 

None of us believe he would be violent with the children but I take all the points above.