when you challenge someone directly on what they posted and they don't respond
there's times i will challenge someone directly on their post, their comment, their reply, if i don't agree with it, but at times when i do that, that person doesn't respond or don't back up their reply or comment, and that's it...and in those occasions i feel annoyed, because i want an explanation about what they posted or their reply...i want to challenge them directly, but they don't respond and that's it.
how should you react in those times?