Ok. So I've been working at UPS for almost 3 years now. And today at work I was working in preload unloading the trailers and another of my supervisor from the load side came over to my area and told me to go to the load side and throw up bulk and I did what I was told. My other supervisor from unload came and told me he was looking for me and told me to sign a paper and I did. This is the first time I've been written up and for only doing what a supervisor told me to do, I guess my other supervisors wanted me on the unload side. So now what?. And what should I do now?. Explain the situation to my unload supervisors?. Tell my load supervisor not to call me on load side until they are finished with unload?. Or is this something I should tell the Union about?.