Bad day at work. Same reason, they want to be prioritized.

First, this girl. I was working in an urgent project. My client (my coworker from another department) sat on my side to instruct me the changes. It was urgent, but minor one. This girl saw my situation, but she told me to send her a work file. I told her that I'd respond her after I'm done with this minor project, but she insisted again and again until the other coworker ordered her to stop.

The last one was this supervisor. Similar situation, except both project were not urgent. He know that I have many projects. I told him that I'd do his new project later and he repeatedly insited me again and again to listen to him and his project. I was fed up so I accidentally snapped back at him. He replied with nasty comment, saying that he only just saying and didn't care if I do the project later (excuse me?).

Oh, when will this stop?