 Reading books isn’t books; liking reading books is liking books.  Cockfights aren’t gamecocks; liking cockfighting is liking gamecocks.  Being about to fall into a well isn’t falling into a well; stopping someone about to fall into a well is stopping someone from falling into a well.  Being about to go out the door isn’t going out the door; stopping someone about to go out the door is stopping someone from going out the door.