or you could, as soon as they start... engage in a little "playacting" with your hubby.. might be hard to get away with with the children around

I say sit right next to the wall and make the LOUDEST noises you can right back at them. And say as LOUDLY as possible
"OH HONEY, IT REALLY TURNS ME ON TO HEAR THE NEIGHBORS MOANING" or something to that effect. Bang on the wall repetatively, and wait to see if they stop and listen. Maybe that will get the point across..

this chilli sort of looks like hes tryin to get his freak on, i just noticed o_o

by the way, this post is in jest, i dont ACTUALLY reccomend you do this. But it would be amusing.