We have a form for order entry, where the colleague have to put the VAT number of the customer, bc the customer might not be encoded in pur db. After a while I checked the inserted record, and saw strange numbers, that resemble customer ID. After pointing out at colleague I receive this answer: "well, few of those have an ID, and I didn't want to look after VAT number. I think it's the same, no?"

... I think I need yoga in my life...