misdirection is good. however a couple of things you can try. try getting one of your wife's shirts, the scent may help (not like a dof but mommy does have a scent) also trainig, try training the baby to sooth it when it is upset instead of your wife while your wife is around have her be there than come in this will show the child that you can sooth too. but really it is seperation anxiety and you need to test by short bursts of absences by moomy and show the child that when mommy is not in front of then she is gone forever. remember the child doesnt know she is coming back. so thry those things. I have heard of one dad recorded his wife singing lullaby and then had one of her shirts and that worked.