Once upon a time Isis, Hathor and BunniHoTep were having tea on the Temple porch. Young Horus was playing on the steps below them while they chatted about events on Temple Row.
BunniHotep happened to look at Horus and was horrified. He was pulling the iridescent wings off the poor scarab beetles that had the misfortune to come within his reach. Isis looked up when BunniHotep gasped and was equally horrified. “No! Horus! No! We do not harm other living beings! How would you like it if someone pulled your wings off!”
Horus, who had been happily playing started to cry. Isis decided it was time for the dreaded No! No! chair and she went into the Temple to go get it. She came back and put it down on the Porch and hauled the godling into the chair. Horus did not like this so when Isis’s back was turned he used his wings to float himself out of her direct sight. Isis looked up and brought him back. This went on three times before Isis lost her temper. She had had it. She thought to herself, “I’m the Goddess of Magic. I will just have to use it to teach him lesson.” She cast a spell to shrink Horus and the chair and put it on her head. “He isn’t going anywhere now! She said to Hathor and BunniHoTep. The goddesse continued with their tea and Horus was stuck and finally calmed down. He decided he really hated the No! No! chair.
And that, my children, is why you see Isis pictured with a throne on her head. It was the only way she could keep track of Horus when he was in the No! No! chair.
Meanwhile BunnHoTep had been healing the poor scarab beetles and decided that as a part of the healing and as an apology they should have an important job. The goddesses made the scarab beetles the rollers of the world through the cosmos. So that the world would always keep turning and the beetles have been doing their job ever since.