I'm not assuming they're hitting Ctrl+C. What I'm saying is the screen that says VIM - Vi IMproved

I'm not assuming they're hitting Ctrl+C. What I'm saying is the screen that says VIM - Vi IMproved version 8.0.567 by Bram Moolenaar et al. Vim is open source and freely distributable Sponsor Vim development! type :help sponsor<Enter> for information type :q<Enter> to exit type :help<Enter> or <F1> for on-line help type :help macvim<Enter> for MacVim help disappears as soon as you enter insert mode (or really interact with Vim at all). If you're in insert mode, you don't see this. So if you see this, typing :quit will work.