lines anyone????

so, here's another frustration.....there's little ol' me waiting for the bathroom; for one of the stalls to open up. what we usually do in the normal world is wait to the side and when one opens up, then you walk to the stall....correct? well, that's NOT the case here in china! a couple of stalls opens up and out of nowhere, this girl and lady walks in FRONT of me and goes into the just-emptied stalls. SERIOUSLY???