 Tineke is convinced she can easily find a  dumb Belgian  to shout her in a restaurant, so she bets for a dinner against Lucas, but even sucking up to Gentil fails, so her last resort is sending Odilon an anonymous free invitation for two; alas, Lucas talks him into asking Jeanne, so Tineke convinces her Odilons boorish manners will embarrass them, but Lucas and Hugo counter by offering a course in table manners... Meanwhile Jef has his eye cast on a magazine contest to win fishery equipment, so he uses the intelligence rivalry between Gentil and Brigitte to make them solve his  IQ test  (from the magazine) but is found out...