Solution to solving LP/Rank loss due to trolls

When there's a troll, especially in your promos, why not have an option for both sides to agreeing on a neutral surrender? Think about it, if you have both sides, agreeing to being a witness to the troll and not just your team, the troll that wants to make you lose your LP/Rank, both sides can easily just report him after, and no one loses or gains LP/Rank This will result in the match ending in zero LP loss and still preventing you from losing your rank in your promos.