bq. If one is at all curious and if one wants to learn it is almost impossible to withstand the challenge put on ones table by a person in need. It is impossible because there is always that chain of thoughts:
Of course the answer must be .! On reflection, one could also say ., or is it possible to use .?
Lets check it! Hm, thats funny! Lets check what YYY says. Hm, thats interesting! Lets see what Google says! Hm, maybe XXX is right after all. I think Ill call my friend at SKF. Thats it. I knew it was something special. etc. etc.
I must admit to being a KudoZ addict myself, although what goes into the glossary is not always good. But answering the questions is more addictive than doing a crossword puzzle.