The guy who invented post-its, so the story goes, used a batch of defective glue to stick bits of paper to his wall and take them down again. The batch lasted for years until someone realised the application of this brilliant invention.
At this point I imagine he kicked himself, then, having slowly peeled his own sticky foot off his backside, accepted that invention is useless without application.
This is a shout out to all the geniuses who have invented new ways of doing things but have no idea that their methodology is of wider use. Tell others. If you have found something that is good, that works and that makes a difference, dare to allow a further supply of humanity to have the opportunity to see if it works for them.
And if you can't see the application of that metaphor to a church's evangelism you'd better go kick yourself. Your foot will not need peeling off.