Caveat 1: Never assume the user will read the fine print. Always make it bold, and put it in the middle of the screen.
Caveat 2: If you assume, you make an ass out of u and me.
Caveat 3: A little paranoia goes a long way, but a little more paranoia is just right.
Caveat 4: Corrigenda are not corrections, but rather a list of things we're still working on.
Stay vigilant, friends!
For more caveats, see Caveats_and_Countermeasures.