We don't like your biscuits!

Always being concerned about varied diets being better for you, I thought I would offer the squirrels a special treat especially as the mating season is approaching. I remember many years ago when I was on night duty at one of the big hospitals which was at the time, surrounded by beautiful grounds with grass and trees, the squirrels used to appear on the windowsills of the ward first thing in the morning. The patients would give us digestive biscuits which we then broke up and put out for them and the ladies on the ward enjoyed watching them as we were getting them ready for the day staff and their own breakfasts.
On Sunday, I got Eden to break up a couple of digestive biscuits and put on the bird table because the squirrels often sit up there when they have got peanuts out of the nut box which is screwed just underneath. On Monday when I cleaned out the nut box and re-filled it I noticed that the biscuits were still there.
At different times this winter I have put other offerings out such as apple cores, bits of carrot and raisins and these have all disappeared without trace in a few days. I must admit, I haven't seen the squirrels take these things or sit there and eat them, but then I can't stand and look out of the window all day. They did take the hazelnuts and walnuts that I put out over Christmas but those must have been buried because I have not found any sign of the shells in the garden.
Today, there were two squirrels taking turns at getting the nuts, some they ate and some were buried in the garden. Then one of them climbed onto the bird table to eat his nut out of the rain and when he had fininshed he picked up a piece of the biscuit, had a taste and deliberately threw it off the bird table! He repeated this with another piece before going back to the nuts!
Now I know the biscuits were only cheap ones which I use for cheesecake bases, but there was no need for him to be so ungrateful. In future they'll just get nuts!