From some hoarding site:
"There appears to be a strong genetic component to Obsessive Compulsive Disorder of the hoarding type. Modeling and conditioning may also play a role in the development of this disorder. OCD usually involves over-activity and/or under-activity of brain regions that underpin the observed behaviors. Hoarding worries and behaviors can begin in childhood, even as young as age five."
"There appears to be a strong genetic component to Obsessive Compulsive Disorder of the hoarding type. Modeling and conditioning may also play a role in the development of this disorder. OCD usually involves over-activity and/or under-activity of brain regions that underpin the observed behaviors. Hoarding worries and behaviors can begin in childhood, even as young as age five."
That photo is 'shopped. You can't actually swim in gold coins.