This player, overall, was being very rude towards myself and another player (Protego Maxime). Here's a list of the things he did and how I responded to them:
1. Claimed in Global that there was a giant glitch in the Great Hall and that he needed an Admin+. When I came over to him, because I was the higest ranking staff member on at the time, he attempted to cast Rictusempra on me and Protego Maxime. He succeeded in both, and I took a total of 3 points (2 the first time for casting on me, 1 the second time for casting on Protego)
2. Used swears in the Great Hall, which is an area where Global chat rules apply. I.E. No swearing of any kind. He said "f you" a few times and then tried to cast Rictusempra on us again. At this point, I casted Silencio on him, because I do not have any form of /mute
3. After the Silencio wore off, he asked for a duel with me, so I said yes. Before the duel started, he attempted to cast Rictusempra on me, but he missed. During the duel, I was beating him with spells and he started to use swears towards me and after the duel, he used more swears. Here is the proof.
4. After the entire duel, he kept messaging me with inappropriate messages, and you can find those here and here.
If more information is needed, I have chat logs and I can post those in a Pastebin if needed.