Mysterious and magical object.

Apart from being lightweight and wonderful when it works, it causes a lot of trouble. 
Having said that, it has magical qualities, such that I only have to mention the word "Dyson" and Grace rushes out of the back door fast.

The trouble is probably caused by dog hair clogging up the innards. I have always managed to clear all the blockages myself, but recently having unscrewed the unscrewables, watched all the youtube videos, I still coudn't get the brush to spin. so I calle Luca, our son, who being 50% British (ha)  always manages to fix everything. 
Not so this time. He said I would have to buy a new brush foot, or whatever you call it. Then, when I was just about to do it, Humpty decided to have a go. I said nothing as he got all the screwdrivers out and began fiddling. Patience is not usually one of his virtues, especially if it doesn't involve boat engines or cars. Anyway. miracle of miracles, he  actually DID fix it and now it spins at top speed.