A neighbour has a small slide in the front garden for her three year old daughter.
I saw the child slip from the slide and fall with a very very slight bump.
She yelled for her mother, who did not appear, so she carefully rearranged herself upside down,placed her hair over her face, and screamed at the top of her voice that she had hit her head and couldn't move.
Her mother came running.
I said nothing.
But it got me thinking. This is really common in children. My brother once climbed up three flights of stairs to announce that he couldn't walk!
Maybe some false accusers are just "upside down on the slide"
No reason for it, and no particular need for attention.They just (sometimes) do it because it is the way they are.