I am having an issue with my male students disrespecting my property. I teach an all boys class. I apologize in advance for the long post. I have actually had to remove my classroom library from my room because they have torn up books intentionally and thrown them around the classroom. I had a sub the day that they did it a few weeks ago. A few days before that I had the issue and spoke to the class about how to properly handle the books and gave a stern warning that if my books were not treated correctly I would take them back to my house. I followed through on that promise and took the books away. I had a different sub in last week when I went for a PD. I came back to find my students had taken my stuffed animal and tore it up along with my fake flower. They also broke up pencils and threw them all over and I found it upon return the next day. Each time I have asked the subs about what happened and they claim to have not seen this or not be sure who it is. Friday I had PAT time. One of the choices was coloring and obviously the kids picked all the coolest activities first. The kids that wound up at the coloring station had a brand new box of crayons, a brand new box of markers, stencils, cool paper, etc. After PAT time and everything was cleaned up for the day I discovered one or more of the students had taken some of my crayons and snapped them into bits under a table behind a box. I made sure to put the coloring station in an area of the room where students could not hide their behavior from me. I monitored closely and these students were upset they didn't get to pick the coolest activities but I explained to them that they did not make the choices to earn enough points for those activities on class dojo. I'm feeling very disrespected. I'm also completely aghast that my boys are tearing apart my things. I have explained several times that I am buying these supplies, that I won't buy more, and that they need to be treated with respect. Honestly, I think that just gives them more reason to do it. What would you do?