The only time I ever got caught: I was about 12, minding my own business jackin' some meat in my room when my dad walked in, he asked me where I learned how to do it, I told him (Personal stuff, not explaining) and he said in these exact words: "I'm not telling mom, this is between us, if you wanna jack off that's your own business, anything to keep you from getting a girl pregnant or something" and he left.