Calvin and Hobbes effect

When you sit on the toilet for so long that your legs fall asleep, because you were distracted by reading. Originally caused by toilet-side Calvin and Hobbes and Far Side books, but has recently seen an explosion in incidence due to smartphones.

'My parents always thought I was ill when I was a kid on the toilet, but I was just distracted by transmogrifiers and Dobie-o-matics.'
-Doctor Oz, 'The Calvin and Hobbes Effect'