Can I divorce my errant husband on grounds of his 'freeganism' or must I say unreasonable behaviour?

You have a sound case and one which I'm sure you will win but to play it safe take your concerns above to Great Uncle Bulgaria as although he appears doddery he is in fact very wise and carries enough clout to influence any major decisions that need to be made. One word of warning though, make sure that trollop madame Chollet is not within earshot when you tell him as she will be straight round to your hubby spilling the beans and flashing her jubblies in his face.