Why don’t YOU take the stairs??

There is a new sign posted by our elevator banks that says, "Why not take the stairs?". I resent this sign. Every time I see it, I come up with several reasons why I don't take the stairs:

1. I'm afraid of getting locked in the stairwell (ok, not really)
   
2. Stairs make my legs ache
   
3. I have no idea where the stairwells lead to and I'm not exactly in the mood to go exploring when it's 5:01 and I'm ready to get the heck out of dodge
   
4. Stairs make my head ache
   
5. Why take the stairs when the elevator is so convenient?
   

My question back to this sign is "Why not mind your own bizniz?"

WHY??

won't these go away!?!