First, ask him to go to Sam's Club with you to help purchase an Artificial Christmas tree.
Find said tree and watch hubby wrestle it onto the flat cart to take up to the check stand for purchase.
Wait several minutes and then express your doubts about whether this is really the tree your family should be buying.
After wringing your hands and melting into a mess of indecisiveness tell hubby you really don't want that tree. Watch hubby re wrestle tree off of flat cart and back onto big pile of stacked tree boxes.
Suggest that you now go to another store and look for a different tree.
I highly recommend skipping the last step.