I think you should check with your local 'Legal Aid' office, or low-cost legal help.
When they put you on probation, did they give you anything in writing? Did they have an employee handbook that spelled out how they would handle sick days, etc.?
Read your paperwork carefully. It sounds like they were looking for an excuse to get rid of you.
You might also want to check with your local OSHA office, etc. Did they give you other breaks during the day? I don't know your local labor laws. In California, they have to give a 30 minute lunch break for over 6 hours worked, and one 15 minute break for each 4 hours worked - so a 10 hour day would have 30 min. lunch and 2 15 min. breaks.
How about juvenile sex offenders? While awaiting adjudication, should they be allowed to attend school? If he goes to school, should the school be informed about the nature of the offense? Who at the school should be notified? All the teachers, or just his teachers? Does he need to be escorted to all of his classes, and even to the restroom, just to keep other students safe? Does it matter who the victim is? What treatment should this juvenile be ordered into?
I have a 15 year old sex offender on my case load right now, and I have to consider those things. He was in detention for a month, but because his fact-finding (trial) cannot be held yet, he had to be released from detention. Should he be on electronic monitoring while awaiting his trial? Where should he live? With dad, who has 2 young daughters? With mom, with no other children in the home, even though she cannot get him to mind her? With his grandparents?
Does it matter that the victim is a relative? What if the grandparents are also the grandparents of the victim?
What if the victim's mother doesn't want charges pressed? What do you think should happen?