I, too, would have been livid. It took me a long time to figure out why I got so flamingly angry when Eagle would walk over and turn on the light above the stove while I was cooking. I would often reply, very tightly, "Don't you think if I wanted the light on I would have turned it on by now?" I finally once said, "What? Is my cooking without a light not good enough for you?!" DING DING DING! That's when I figured out what it was.
I realize he was trying to help, but it wasn't like my hands were full and I couldn't turn on a blasted light, so what was it? I felt like what I was doing wasn't good enough because when I was younger, I would be trying to do something by myself, maybe for the first time or trying to master something, and my mother would get frustrated that I wasn't doing it "right" or would get impatient with how long it was taking me, so she'd take over and say, "Move, I'll do it." I would then stand there, her frustratingly doing it without actually showing me what I was supposedly doing wrong, and I would get angry. Every time Eagle turned on that light, he was telling me I wasn't doing it well enough for him, so I got livid. Now that I know why it bothers me so much, and now that I have explained it to Eagle, I don't get nearly as angry.
Why all of that? Just to explain that I completely understand why the OP was livid.