It's great that you guys apparently magically know the intentions of every player on your team. I lack this prescience, partially because I give the benefit of the doubt to new players that I don't know. In most cases, it's just annoying, but teamjacking shouldn't be allowed between securities when the President is a passenger. I view it as similar to teamkilling. Whatever vehicle the President is in should be protected from anything bad a teammate could do to it (like securities teamjacking, or VPs teamjacking to leave the President stranded). The "it saves the president sometimes" argument is bullshit- the vast majority of the time it contributes to his death.