Madness @ Work

We have a signal generator for sale. Note the complete lack of connectors on the front panel:



Note the connectors on the rear panel:



This unit is marked and advertised as being fitted with Option 002, which moves the connectors from the front to the rear of the device. We got an email asking if this were a plain unit with the output connector on the front. The dummy potential customer noted in their e-mail that they saw that it is an Option 002 unit.

This is a thousand-dollar transaction, and the person who sent the email deals in test equipment.

a) what do you say to someone with this level of intelligence?
b) it's too bad I can't tell you their eBay username, because I would really like to warn the world to NEVER deal with them.