i have a 6 yr old who hates school.  he cries every morning that he doesn't want to go.  now he's started crying in school as well.  i think he is just manipulating everyone to let him stay home but my husband thinks we should be worried about why he hates school so much.  his teacher called twice last week to tell me he was crying and wouldn't stop.  i took him home the first time but not the second time.  should i be doing anything differently?