[rhazn]

Not sure I can change the submission anymore. I am happy with the title as it is for my own blog, it just created some irritation here.

I am not a native speaker, so my interpretation might be wrong, but I tried to evoke the semi-serious but good-natured "You went to the bakery? You better brought me a snack as well!" meaning with "better have", not the "must have" meaning.