You know you've been hacking too long when
= Y =
Your mileage may vary cav.
[from the standard disclaimer
attached to EPA mileage ratings by American car manufacturers] 1. A
ritual warning often found in Unix freeware distributions.
Translates roughly as "Hey, I tried to write this portably, but
who knows what'll happen on your system?" 2. More
generally, a qualifier attached to advice. "I find that sending
flowers works well, but your mileage may vary."
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.