I can see why you write that Chimensch, but I am inclined to disagree. From my experience employers find hobbies a good way to get an impression of what the individual is like on a personal level.

Besides, the job i'm applying for (and others in the same sector I have applied for in the past) specifically asks for a personal statement (as well as a seperate professional statement), the former looking for 'an informal statement about your hobbies, interests and reasons why you are interested in working in this field...'. The career lends itself to this information.

Mind you, I still wont mention straight razor shaving.