Spanish to English Bus/Financial Retail Central America

This term is being used to describe a person who goes to a store without any money and he doesn't plan to buy anything. In this case, the customer consumes products inside the store and then tries to leave. In reports, the management is describing him as a 'falso cliente.'

'Fake customer' and 'false customer' do not seem correct to me - fake seems to imply he is not a real person, false seems to imply he has given inaccurate statements, which isn't the case. Is there a term for this person in English?

Other option is 'pseudo customer' - not sure about this either.

Thanks!