Congressmen grilled Facebook founder and CEO Mark Zuckerberg again Friday, peppering him with ruthless questions such as asking how to tag friends in posts.

Representatives went so far as to ask how to share posts to just certain friends, how to block people on their newsfeed without them knowing and how to delete posts from years prior.

“Mr. Zuckerberg,” California Congresswoman Maxine Waters said sternly, “so if I put an @ first, then I can tag my friends in a post?”

“I don’t want to unfriend my aunt,” Illinois Congressman Sean Casten said. “But I really don’t need to see all the recipes she’s posting. How do I just like, hide her posts? Can you answer that, sir? Hmm, can you?”

Both these clips and more were shared in devastating NowThis videos more than 14 million times.