LOL, moron, guess he's watched to many movies/tv shows where people put their guns in the front of their pants.
Well, the issue is when putting the gun in your pants like that, you are still holding the gun in the firing position of your hand...your finger gets pinched and can accidently press the trigger. You can watch AHnold do that in a lot of his movies, or Stallone do it...but I am sorry, I would buy a holster and put the gun in it. If I am holstering a gun in my pants, I will put it on the back waistband lol! Specifically for that reason.