Louis, as I look at the pics of the boys, and their ornery faces, I almost have to feel sorry for you--they've only let you believe you're the alpha male....
No seriously, the squirt bottle works, I've used it for years on my misbehavin' kitties, but you have to have one that shoots a straight stream and not just a mist (which I did at first cuz I used a plant mister
) They just HATE that burst of cold water!