O.P.D.
Obsessive Pug Disorder is when a kid, usually under 10, can’t stop thinking about pugs. It’s a sad illness that can’t be fixed.
@joe: 'Pugs are the best!' (he cried when he saw a dog)
Lisa: 'I love pugs!' (she drew 10 pugs on her notebook)
Tom: 'I’m gonna marry a pug!' (he said it 5 times in a row)