There once was a woman who had 100 children.
Unfortunately, she wasn’t very good at choosing names for them all, so she decided to just number them in birth order - One, Two, Three, etc.
One day, she and all of her children were in a tragic plane accident and the only one to survive was her daughter, 90.
After years of grief and growing, 90 got married and had some kids of her own.
One particular day, they found a stray dog and decided to keep it. But, just like her mom, she pretty much sucked at naming things, so she and her husband decided to call the dog, "That".
After several years of a happy life, 90 and her husband grew elderly and infirm, each eventually losing their memory.
They didn't know who their children were nor the name of their dog.
Only 90's kids will remember That.