Squirrels on the Bird Table!

I know lots of people consider grey squirrels to be pests but I love them.   I rarely see any in my garden, so I was surprised a couple of days ago, hearing a clattering and thumping sound, to find a squirrel in the garden.  The noise was presumably from it hurling itself from the roof onto the greenhouse roof and from there via a small table to my doorstep.  The table is Monty's favourite place to sit and watch the birds, it's a bit rickety so rattles when he jumps up.   I'm just waiting for it to collapse one day, along with the greenhouse - Monty likes to snooze on the roof!
Today the squirrel was back, with a friend, to investigate the bird table.  There wasn't much food up there and they didn't seem interested in the sultanas that the birds relish, so they didn't stay long.