I know people have hobbies. Some usual, some unusual. I watched the movie Trainspotting yesterday (directed by Danny Boyle of Slumdog fame) and out of habit (or hobby! :P) made my way to the wikipedia. So it seems that standing all through the day and looking at trains plying between stations is actually a hobby! Some have the hobby of travelling and visiting as many metro or rail systems as they can! And some including the famous Alfred Hitchcock have/had a hobby of collecting and memorizing railway timetables! Pretty interesting these railfans!
So what's your trainspottin? :)