A type of joke used for a technology or solution is almost certain to shoot yourself in the foot. That product or technology is a footman.
For example, An inexperienced person who believes that that the latest vendor technology/product/promise will actually work as promised is pretty much using a footman.
Or when someone implements wanker knobs “as a one-off” to “manage the situation” and then a fault occurs …. that means the footgun had gone off.