My sympathies goes out to you Jurgen and my condolences to the models that didn't make it. Wives, girlfriends, sisters, small kids, cleaner ladies and in grumpyoldman's case, cats are the scourge of hardcore modellers.
Okay, a frontal assault is out of the question. So I suggest Guerilla warfare, my favourite and believe me I come from a country that has seen a bit of that. The basics of Guerilla warfare is that:
1. Remember you are up against a superior enemy (aka. the wife). Never go for a confrontational approach.
2. Guerilla warfare requires that you attack when the enemy least expect it. Go for flowers as the first line of attack. Suprise her with a romantic dinner outside for the second line of attack but don't make it too obvious. Pick a time like when she's too tired too cook.
3. Confuse the enemy. Never let on that it appears that you are doing it for your modelling but rather because you want to spend QUALITY time with her. Slow and easy with the gifts and dinners.
4. Strike at the enemy's weak points. Find out what she likes and indulge her.
5. When all else fails try the ultimate. Its going to be yucky and disgusting but remember guerilla warfare is DIRTY. Tell her (ugh) you love her more than anything else but modelling is is part of you just like her but on a less significant scale and you hope she will understand. If you don't puke and die from saying this then you are home free. I strongly suggest a GOOD DOSE of Alcohol before attempting this. DON"T TRY THIS AT HOME KIDS, ITS DONE BY PROFESSIONALS.
Good Luck and take no prisoners.