Preface :

The word 'small' has been replaced with '5K' all along this text to make it 5Ker... you get it ? If not please refer to Einstein's "E=mc²" that might help you solve the above problem. Please don't forget that it only applies to bodies that move at constant speeds in straight lines - at constant velocity ... and maybe add a little bit of gravity !#! you get the point... still not - then guess what, physics is not for you, nor is humor.

 
Once upon a time there was a 5K man called Mr.5K. Being 5K obviously meant some problems came with it. For example (just a 5K one), every time Mr.5K tried to go to the post office (at this time called 5K office) the teller couldn't see the 5K man and therefore not serve him & sell him the 5K stamps.

Until the post office would close, the 5K man would just stand there (in his 5K shoes, obviously...) and wait and scream, but his 5K voice wouldn't reach further than about 5 inches so there was 5K chance to be heard.

Now you can just imagine how many 5K problems Mr.5K faces in this WIDE WILD WORLD. Someone once said 'the world is a 5K place' only too true if you are Mr.5K.

5K PS : this one's for the judges..... 'functionality' is relatively 5K !!!