The screaming had escalated from nothing, to gentle whimper to a big scream...over a period of time. They did not come in with the baby upset/colicky.
I don't know, I suppose I just don't get how you couldn't just hold your baby and acknowledge that it's not happy - I know if I'm upset, it's comforting to be comforted...and I'm an adult with words and the ability to rationalise a situation that I'm in! Also, as someone who hates shopping centres, I guess I have seen how much I can live without the all-important earring shopping and Oscar has spent minimal time in big shops. When I AM there, Oscar takes priority.
As for speaking rudely, it's not a great example to be setting as a reaction to an annoyance!