<human>: I have this piece of shit Co worker. He is lazy, is always complaining about something. I pretty much can't stand him. We have to work together because it takes 2 people to do the job. 
He has lied to me several occasions to get out of work. Recently he went in my locker took out my personal electric heater to use (which I gave him permission to use when I was here) and broke it and put it back in my locker. I went to use it tonight because the piece of equipment we use doesn't have one and turns into an ice box, it doesn't work. He said he didn't use it. I know with 100% certainty he did and he broke it. 
He also has started eating parts of my lunch I came to work ate my sandwiches, closed my lunch box up, I went to work because it was his turn to run the piece of equipment, when I got back I was going to eat my pizza flavored Pringles and crakerbarrel cheese stick. They were gone, not only were they gone but the trash was sitting in my lunch box. 
I have confronted him on all of this and all he does is LIE. He obviously is the one that does it because no one else is around. I can't lose my job so starting shit with him is out of the question. I don't know what to do. It is so frustrating working with him.

Give me a shortened version of the text
<bot>: My coworker is a piece of shit that eats my lunch, breaks my shit, and lies about it when confronted. I want revenge, childish or not.