What someone wandering the streets in an apparent "mental blank" claims to have when informed not only of his identity, but dat he's wanted by da cops.
A number of individuals who claim to not know who they are turn out to be escaped convicts; sounds like classic cases of "lamnesia" to me.
What Mary's brain had regarding da mischievous-antics possibly of her woolly little four-legged friend when she hid him under her desk, but then didn't "take any steps" to make sure that HE wouldn't "take steps" to follow after her when she went up to perform a task at the blackboard!
Fortunately Miss Kimball was a good-natured understanding soul who understood dat little kids may likely make innocent-but-embarrassing mistakes, and so she didn't blame Mary for her lambnesia; she just gently asked her to put said tiny adorable creature outside for da remainder of da class-time.
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2million.