Alright, alright, alright, I know I don't want the stuff to wear off while the Dentist is in there drilling around and such, but I swear that the Dentists I've been to use far too much Novacaine and that the stuff takes forever to wear off.  Nearly 4 hours later and I'm just now finally getting the feeling back in my mouth.  Ugh.  Enough to do the job and a little more to cover possible distractions is fine, but enough to leave my face number for the rest of the day just sucks.