Bared at my new job (No, that is not a typo.)

First day at my new job.  I wanted to make a good impression.  I was on my best behavior.  I was attentive to everything I was being shown and told.  And then......well, then I really showed my ass.  (Oh Mary Anne and Jennifer....you are going to love this....).   Yes, I did.  I showed my ass on my first day of work.   Not figuratively (that would have been much better).  No, literally--I showed it.  I went to the restroom and came out, walked down the hall a ways and heard someone yelling " Excuse me!  Excuse me!"  I turned around (along with my 2 new coworkers) to see a lady running toward us, waving her arms.  She catches up and says (to me) with a heavy southern drawl,  "Yur skirt is tucked up in yur waistband!  And we can see this much of yur BEE-HIND!"  (that's how they say it down here....BEE-hind, emphasis on the BEE).   She then shows me by gesturing with her hands just how much of my BEE-hind (emphasis on the BEE) everyone can see.  I said (being used to these kind of incidents) "thank you very much", reached around and pulled my skirt down over my BEE-hind, shrugged at my 2 new co-workers, and walked on.   So much for my good impression.  On the bright side.....any mistakes I make after today will just pale in comparison.  (and if this story gives you a deja vu feeling.......it's because this is not my first lingerie faux pas---yes, unfortunately--for me-- you have heard this story before.  See Facebook Note dated March 9, 2013 titled "I am like a generous Pirate.....I share my booty.")