Stinky Toilet

Ian can't stand even the slightest stinky smell at the public toilets and has puked on few occasions.  Due to the incidents, he tends to hold his bladder and makes a dash to the toilet as soon as he gets home.

His exam is just around the corner and sometimes I feel really sick with him during revision time.  He just loves dilly-dallying in whatever that he has to do.  We had a conversation yesterday and it was about sending him to tuition centre.

Mom: (I asked him seeing him relaxing on his chair at his study corner) Ian, have you finished the revision that I gave you?
Ian: No. (still in relaxed mode playing with his stationeries).
Mom:  (Walks over and sits next to him, then only he digs his pencil albeit slowlyyyy out from the pencil box). Boy, I think I'l have to send you to tuition centre, just like most of your friends.
Ian: No, mommy!! I don't want to go to tuition centre. I DON'T WANT!!
Mom:  Why?  You have friends there where you can play with.  I am getting tired with you not listening to me.
Ian:  No, I want Teacher Mommy only.  I don't want to go to tuition centre.  My friends tell me the toilet there stinks.
Mom: O.O.