@jiggly, was talking to dh and he was mortified I'd told mumsnet about our pulling joggers down thing. He keeps checking the daily mail website :)
It's like you say, mutual consent is key. If he thought for one second I wouldn't laugh he'd not do it, and vice versa. If I'm stressed or angry or feeling bad about something he knows it's not time for jokes, and that I wouldn't appreciate it or laugh. He knows when it's appropriate to do it, not because he's some kind of super mind reader or unaware of how dickish it would be, it's because he's not a selfish sex pest. If something should ever happen and he ends up with a different partner, he has the basic common sense to know that because I like something, it doesn't mean future partners will.
Dh is 43 too btw, I dont think age is a get out clause and as for the suggestion that OP educate him? She's educating him when she says no, she's educating him when she tells him how it makes her feel. He just doesn't care.
Anyone who keeps seeking someone out to do something to them that they have continuously asked them not because they feel uncomfortable with it, knows perfectly well how dickish it is, he knows how he is making his wife feel because she's told him, he chooses to keep doing it cos he's an entitled twat.
When we say things like men of that age don't know better, or men don't get it, it's an insult to men in general, most men are not stupid enough to think what the op describes is ok and wouldn't do it to their own wives and it also gives excuses for the ones who think they are entitled to their wives bodies whenever they want to hide behind while planting all the blame (she's weird for not liking it etc) and the responsibilty for fixing it ( have sex with him more, educate him, lock bathroom door,) and then the blame if he cheats too?
The blame lies with the DH, he knows what he's doing, hes been told, he's the person who should be fixing it, if he really really can't stop himself groping and sneaking up on her he needs to see a GP. He has no excuse for behaving the way he is imo.