There's a name for that: Neganumeriophobia. It exists:

The absolute value function was created in 325 AD by 'famous' Italian mathematician Antonio Numero. After a horrific accident during his childhood, Antonio developed Neganumeriophobia, a fear of negative numbers. Despite much risk to his own personal health, he dedicated his professional life to creating a valid mathematical formula which would remove negative numbers from existence.
I give you $1 for goods and/or services. This mean I ha...

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