I have a rubber hand on a stick (a halloween prank item I bought for socializing ferals without having MY hand removed). What if you stuffed a garden glove with items that smell like you and your husband, attached it to a broom stick, (probably tape it with duct tape & well) and pat him all over with that? Let him bite the crap out of it, and maybe the aggression will taper off when he realises he's not getting a reaction. It works with wee nastys, and cranky cats, it may work with Magoo! Get as much odor as possible of yourself onto the glove first so he thinks it's you. Just an idea. P.S you could even stand on a chair while patting him so the leg attacks don't occur.