Words you need to know in Japanese

Well, according to STA Travel that is:

Curious that of all the words they suggest you might need to know, "chikan" is in there with "hai" and "delicious". In fairness, they do offer these in the spirit of "useless info", however it's hard to see how any of these, with the exception of word number three, are actually useless, unless you do indeed take their advice and use these at home.

Perhaps I'm having a sense of humour bypass, but this gets my goat. It is all part of a cumulative effect that undermines the respect that one is likely to accord to the country you are visiting.