I do not want to keep this ongoing, but I will respond to a few comments you made.  I never said I was a newbie.  I said I was "inexperienced", as I log on infrequently.  I thought I was in sandbox, and unknowingly made the change.  Again, for someone who made two very small errors, you should assume good faith.  If you feel it is vandalism, ask the user what is going on before jumping to judgement.