I agree with the idea of the car door type thing, but there should be an LED attached to the thing, and the rule should ALWAYS be: If it's on, it's OFF, if it's off, it's ON.

Honestly, who's the idiot who came up with the idea that when the device is doing it's job, it's off, but when it's just sitting there, it's on? Even if allowing the sperm uses up power, preventing the sperm should be referred to as on.

What? Some blokes will be listening in on the chaps from blighty?
Volley'd and thunder'd!

Hmmm, remote controlled ‘vas deferens’ valves. I wonder can a second set of valves be installed on the vascular structures that control erectile functions. 

Hey, now we could have the best of both worlds! The doctor could keep the birth control button; we could keep the Mr. Happy button, ready for action at a moments notice! 

It would take the guess work out of Viagra, would it not?

It would give a new meaning to, “He's on the button”.

SPARKS

Well now that's something to add to that multi-device remotes.

How about putting a led on the device to know it's on-off state and give you a fertile "glow"

socialism

Methinks the days of playing Barry White to help the mood may be over. He used to get you laid, but now he makes you sterile.

Yet another remote control to lose down the back of the sofa. Just hope it isn't switched to "off" at the time.