Hello. One of the reasons have been banned is for breaking the rule four, which is "follow common sense, you cannot murder someone because they slipped you on a banana or gundown the captain because the shuttle was recalled" In this case, you killed the HoS because he recalled the shuttle, and to correct your quote, after someone said to the captain, "Get out of here boss, he will kill you." You said, "I wish, I'm out of juice, just used it on the HoS." Due to your mentioned conflict with the HoS, it wouldn't be unresonable to think you would do it to the captain to, if you had the resources, you digged your own hole deeper by saying that.
Another reason is because of your constant bad behavior in OOC: Swearing, IC-in-OOC, or complaining of things happening during the round.
Third reason is you toeing the line with the rules, like when you tried to toss the pAI out of the airlock for "being unfunny"
This three things lead to an extensive ban, it is clear that you didn't read the rules, or you ignore them. If you didn't know, pressing F1 brings up the Rules tab, it also appears in the lobby below server info.