A script to search users home dirs for certain words.

[pauhn]

I am trying to create a bash script that will search all users home directories on a system for words like quit, steal, kill etc. Pretty sure I'm going to be using grep /home. The only thing is that obviously a word like 'kill' could have normal uses too like "I need to kill the process." How would I go about flagging a user with the word/phrase found, and the path while also omitting legitimate uses?

[pauhn]

grep -w will have me search for a specific word, but how to I omit legitimate uses of the word?