Billy went to see Administrator Y. He was sure that it was an oversight because such a fine administrator would never renege on a promise to a boy. Administrator Y said "I am a busy administrator. I have lots of work. I have no time to write your recommendation." Billy was crushed. He needed the recommendation as the college office would not send out his college applications without it. Billy finally convinced a teacher to fill one out for him in a hurry.
Would you accept Billy telling you he couldn't do his homework because he was busy? I'm guessing the answer to that is no!
Would you accept an excuse like that from a teacher who was not prepared for his class? I'm guessing the answer to that is no also.
So, why do you think it is alright for you to be busy? Are you the only one busy? Is your time more valuable than every other person's time?
Administrator Y, you took a job that required lots of work. You had to know that before you took the job. Did you want the perks without the responsibility? Were you just tired of being in the classroom? Do you like the prestige of having an office and a title?
Administrator Y, your job has many obligations. Writing this boy's recommendation is one of those obligations. Do what you expect others to do. Or, are you one of those that say Do as I say, not what I do?