Make a private animation/image post (Don't 18+ the anim or put it in public And you'll have a private animation/image post), And then Give the private anim Attach anim, (After you make your private post, You see that attach button?, Click it and then go back to who you want to vent with and attach the anim. It's on the thing when you are texting) and if you don't want anybody else seeing it, Make sure that the one your are venting with is in the private anim and then delete that comment (the one that you attached the private anim) and boom, Explain the thing you are venting in the private anim with the person you are venting with. I hope this helps!