Right, feel free to tell me I'm an idiot but I think I've had put my foot in mouth with my boss.
He's known to get very rude and tangential when stressed and he has a tendency to ask unrelated questions without fully understanding the issue - we all know what he's like. He's basically a nice person, but he can be a nightmare to work with sometimes.
He phoned me to ask me about an issue that's currently under my name. It's been escalated to another team because there's literally nothing more we can do with it. I'm juggling a lot of things at the moment so it's not always easy to have the minute details of every issue memorised, which is often what he expects. However when he phoned he was very rude and impatient and the conversation was a monologue where he'd ask an unrelated question and answer it himself. His analysis of the situation was completely inaccurate and it was going in a direction where I was getting blamed for lack of knowledge and effort.
In order to defend my position and to basically get a word in, I had to speak to him a bit firmly.
I raised my decibel slightly and my tone wasn't rude but it wasn't sweet either.
I got my point across in the end and we agreed a course of action.
However, I got messages fro people who'd overheard the phone call asking me who I was so upset with 
I suppose I must have sounded rude and angry even though I didn't think I was?
It's my manager's manager we're talking about here, so I'm very nervous that I came across poorly and offended him ...
Any ideas for damage control?
I have been a bit short at work lately because I've had loads to deal with personally and professionally.