What did I do wrong ?

Question

I got a referral in school for doing this and got a record already in the school but what did I do? someones lunch a slice of pizza was left on a table bench I went over to the bench and ate the whole slice of Pizza then a teacher told me later that belonged to a boy named Mark and then she wrote me a referral and told my classroom teacher what crime did I commit

Answer 1

Unless it is abandoned, like in the garbage can, you committed theft. Even if you did not it does not have to be a crime for you to violate school policy and get a referral or detention or whatever their punishment is.  

Answer 2

I've seen you ask this about 15 times. So far, you've taken pizza, cookies, an apple, and many other items I don't remember.

Just look at your other questions, the answer will not change.

Answer 3

Technically?  Petty theft.  Taking something of small value that was not yours...

Answer 4

stealing--you took someone else's property.