Just a straw poll here, but tonight I picked ds up to find numerous strangers and their children in his nursery, along with two 'beaver' leaders.
It turns out that nursery share the hut with the beavers once a week, and beavers have decided that they want to start their club at 5.30pm, impinging on nursery time by half an hour.
I don't get angry at much to do with his nursery, despite the heating not working currently (nor for the past month...), but I do not want
a) ds's nursery activities cleared away half an hour before the end of the nursery day
b) to have strangers, who I don't know, around my ds in the environment I entrust him into
c) to pay for that half hour when it's turned into another club
d) ds hurt by the equipment they erect for their activities (admitedly, tonight it was only tressle tables, but all the toddlers were running and playing underneath them...)
Is this acceptable to you?