Back in the Saddle Again

First day. It feels like a bad dream. This is a nightmare that lasts from 8 to 5. Another sea of faces, an impossible number of names to remember. No one to train me, she quit last week with no notice. How can I answer questions if I don't know where anything is? I keep overhearing things like: "Wow, I can't remember the last time we didn't run two shifts. Things are so slow right now, it's so wierd." and "Oh, hi, you must be new. You're replacing Joanne? I didn't even know she left!" Sigh...I have a bad feeling about this....