My Cover is Blown

As I've written before, I've been forced to make my students believe that I don't speak any French.  Some of them believe me, but many of them have caught me red-handed.  The other day I was surrounded by students while waiting on line at the bakery, when the wife of one of the English teachers spotted me.  She popped into the bakery and kissed me hello, and I spoke for a few minutes in French with her and her young daughter.  The students stared the entire time.  Then, yesterday, a man came into one of my classes to ask for the attendance list.  The class had literally JUST asked me, "So...do you speak any French?" and I had JUST responded, "No...not really.  A little bit."  But this man interrupted my class, speaking French, and I had no choice but to respond. In French.  I tried to whisper, but when I turned back to the class they were all giving me the stink eye and going "MmmHMMMM."  One kid goes, "...a little bit?!"  Well, shit.  My cover is totally blown.