You can if you're able, you may if you must...

"May you get me a napkin please?",  my sweet Parker says to me at the dinner table.  This is how I know that somewhere in there, she really is listening to my little life lessons.  You see, I once had a teacher who tried to teach us the difference between "May I" and "Can I", and I learned the lesson (maybe a little too well) and so when the girls ask me a "May I" question with "Can I", it makes my skin crawl, so I've corrected her at least 1000 times.  Well, she heard me, and I guess I wasn't clear in teaching the WHOLE lesson.  Oh well, we'll get there.