SHOULD I KEEP MY SON IN PRESCHOOL

我儿子不是那种很调皮的孩子，自从去年上=学以来，就莫名其妙受到歧视，老师还吓得他尿裤子。有一次去学校早，发现一个老师带着他单独在厕所里换裤子，老师两眼发直，不知在干什么，不象一个正常人给小孩换裤子，我赶快叫停，她很生气的把儿子的裤子扔给我，从那以后她倒是对我和儿子好点了。THIS THING STILL BOTHERING ME NOW，A LOT OF TIME ，I WANT TO GIVE UP PRESCHOOL FOR MY SON。THE ONLY THING WE CANNOT DO IS I CANNOT FIND LOT OF LITTLE FRIENDS FOR HIM。THIS YEAR HAS 2 DIFFERENT TEACHERS，THEY STILL SHOW DISCRIMINATION TO ME。I DON‘T KONW WHAT IS GOING ON IN SCHOOL，BECAUSE MY SON CANNOT TELL ME THE TRUTH IN SCHOOL AND KIDS ARE EASY TO BE CHEATED。
SORRY HAS TO TYPE ENGLISH。I AM HOLDING MY BABY GIRL SHE IS SICK，ONLY HAVE ONE HAND TO TYPE。