Some examples are, 

A student named Zak was lending Croix a colored pencil. The teacher called them irrational, which is insulting students. Mr. Wolford then kicked Croix out of class.

Days after Ava Gale overheard Mr. Wolford saying “Oh yeah, because Croix is a bad student.” A teacher saying a student is bad just proves how he can’t handle his job. 

Another situation was Zak agreeing with the teacher by saying “mhm” but was kicked out of class because he was “giving attitude”. The teachers job is to teach, not parent kids. 

 The teacher has also cursed multiple times, for example having after having an argument, he said “F*king 12 year olds.” this proves that he is a bad influence on kids.

These are few of the many events.