Ensure that you really want to pvp!
This plugin adds a form confirming if you mean to hit a player, it is configurable and will allow you to randomize the buttons, change the icons and more. This plugin also serves as a demonstration of this form class https://github.com/UIPlugins/libBoolUI
Download here
This plugin must be downloaded from here or it will not work.
https://poggit.pmmp.io/ci/UIPlugins/PvPConfirmationUI/PvPConfirmationUI