Any producing entity is the last to use its own product.
Any simple idea will be worded in the most complicated way.
Any smoothly functioning technology is indistinguishable from a "rigged" demo.
Any sufficiently advanced technology is indistinguishable from magic.
Any task worth doing was worth doing yesterday.
Any technology distinguishable from magic is insufficiently advanced.
Any theory can be made to fit any facts by means of appropriate additional assumptions.
Any time things appear to be going better, you have overlooked something.
Any time you wish to demonstrate something, the number of faults is proportional to the number of viewers.
Any tool dropped while repairing a car will roll underneath to the exact center.