Joe bought some (wildly over-priced) network cable from Best Buy, and it had this printed on the side, lengthwise:
The length of this 14’ cable is roughly double the appropriate distance of the imaginary bubble of personal space one uses at the ATM.
The Geek Squad phone number is included, in case this amazing fact has suddenly made you remember that your computer is horked.
I assume other cables have other handy facts on them.