And, sorry, I forgot this bit.
I try "I don't know" but usually get the response "Well, you should know", so now, more often, I say
"Steve is sorting it out" or " I'll tell Steve about it in the morning"
Steve doesn't know anything about all this, because Terry will have forgotten it in the morning - he is one of the regular carers, and they are good pals, and therefore can be trusted with anything!
Good plan....I will say Fred his friend. Thanks
I do find this or variations of this work quite well as answers
