Not fun Fizz :(
Was it just tiredness do you think?
I know I was v crabby myself this morning after a busy & tiring week. Poor DD got a cross-voiced Mummy a few times over before we even left to go to playgroup :( I took a few deep breaths and was more cheerful once we were out.
When you're only still 1 it's hard to do that though 
Sounds like you dealt with it well by leaving though, sometimes cutting & running is the best plan.
Is anyone else's LO turning into a right bossy boots? I'm not used to it from the boys so wonder if it's a girl thing. DD tells me what to do all the time, or not to do. If i turn on the car radio and she doesn't want it on, it's 'off Mummy off', or if it's not on and she wants it on, it's '(mu)sic Mummy sic'.
And the worst, but funniest is, if I'm talking (to her, to someone else, whatever), she says 'pause Mummy'

Too much time with Sky+ I think....