Off by a factor of ten

How do you quickly identify a pedant?

Offer to hand over a cheque for $100,00,000 and see if they point out your mistake.

How do you quickly identify an entrepreneur?

Offer to make an investment for $100,00,000 and see if they take your money.

The sad thing about society is that most people will stand around belittling you for the obvious typing error rather than taking the money.