golf handicap ---- fourteen, etc
Jeffrey Archer's "False Impression":
Whenever you 're abroad and in need of information, book yourself into a good hotel. But don't seek advice from the manager, , and don't bother with the receptionist, only deal with the head concierge. Information is how he makes his living, his salary is incidental.
For fifty dollars, Jack learnt everything he needed to know about Mr. Nakamura, even his golf handicap -- fourteen,
1.Information is how he makes his living, his salary is incidental,
what does this sentence mean in the context?
2. golf handicap --- fourteen
thank you for your help