The first time I ever masturbated was on my Mission at age 21. I knew I had to confess to my mission president, but I sat there in silence for what seemed like a few minutes unable so speak. Finally, I blurted it out. My Mission President responded with, Do you think that is why you are not baptizing?
We were teaching more lessons then just about any mission companionship, activating several families in a newly split area and that was the response I got. A guilt trip. Stop asking inappropriate questions and using shame/guilt.