4.) Perhaps, if you're lucky, the total mind-to-mush syndrome that I faced after three months off won't plague you. (Seriously: It took me two weeks to readjust and get my brain back. I couldn't remember procedures, and asked, "What is it I do here, exactly?" every hour or so.)
If you doubt you'll have the desire to call in regularly, enlist a coworker to place the call for you -- maybe every other Friday. I'm thinking this will be my tactic, since I'm apt to want to hibernate again like the last time I did this wonderful thing called childbirth.