Im a young woman working preload for almost a year now. I have two months to go. We recently got a new full time and part time sup on our boxline. The full time is alright. The part time sup i thought was cool too but he has been coming after me since day one. His last interaction with me was him standing at my set constantly asking me to put irregs in my truck that i had no space for and to pull from my cages the way he wanted to. I complied and always responded with "ok" because i just didnt want any issues. Mind you the urge to rip him a new one slowly growing. Hes just about been told off by everyone hes bothered with the exception of me and maybe 1 other loader. Later in the morning i have 3 packed cages back to back and about 6 or more empty ones behind them. So i pulled the cages and stacked the boxes inside the trucks. Our supervisors have allowed us to do this since i started. They encouraged it. I didnt think it was a problem. 3 empty cages later ive loaded 2 out of 3 trucks that i internally stacked and go to work on the 3rd one when he steps into my truck demanding to know why i stacked. I told him i had packed cages and needed to pull everything. He repeats himself and asks me again adding that he will wait for an answer. So i just repeated myself and then walked away to continue loading my last truck. When im about to shelf my last box he stops me and tells me to leave it and follow him into an office where he proceeded to tell me and my union rep that i had stacked all day and hes been repeatedly asking me not to. So he wrote me a warning letter with no conditions. I continued to bite my tongue. Ive dealt with harassment in the past and at this point knew yelling is what they want. They feed off of it and try using it against you. My biggest issue is he not once told me not to stack, any time he asked me to do something i did it. And regardless he felt a need to discipline me. I especially dont appreciate him talking down to me like im his child and im at least 2 months older than him.