Being as VIM can only be run/used from SHELL, of what good is it to turn it off? Unless you disable their SHELL access, or teach how them how to turn it off and make sure they always do, you will run into this problem over 'n over.
To kill it you must first find the process number, run: ps -xla
Then look (on the far right) for 'vim theme.php'
Now start on the left and count 4 columns over. There you will see the process number and you can do a kill -9.
kill -9 psnumber >> Enter
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