What is it with these women who walk down the centre of the sidewalk and refuse to move, even an inch, for other people on the sidewalk?

I've had this happen when I've been lugging two full carry-alls of groceries and they've been carrying nothing but a purse.

I'm not being misogynistic here.  Men do it too but 90% of the time it's a woman.  (And I generally like women far better than I like men.)

When this happens I try to remind myself that I'm lucky not to be some poor schmuck who's married to or involved with them and has to put up with their self-centered shit regularly.