One of the mainstays of old school pickup was the false time constraint.
You would go up, deliver it on approach, and it would help you display high value plus remove any fear a girl might have of you being a social burden – some guy who shows up, gloms onto her, then never leaves and she can’t get rid of him.
The false time constraint’s faded into increasing obscurity, a relic of an indirect game past that assumed guys start out in a low-value position and have to demonstrate higher value before women will like them. That’s why I haven’t talked it up much before – my advice is “get your fundamentals to the point where you’re automatically higher value.”
But what about situations where you mess up on the opener, or maybe for whatever reason this girl thinks she’s better than you, or you’re meeting women somewhere the competition is fierce and girls are flakey and non-commital – is it ever worth using an “FTC” to give yourself breathing room and show her what you’ve really got?