An old friend of mine who runs a small business in the UK, described to me his dealings with officials from another country, who wanted to check him out as a potential supplier :

We sent air fares for 5 officials (1st class) they bought economy and pocketed £2k each. Demanded Hilton on Park Lane for 5 nights (our cost). Specified the car they wanted to be picked up in. Demanded an open credit limit on their hotel rooms. Are planning to be on site for the audit for 90 minutes. Crooked? Nah…..

Poor guy!!