Veco , Enya, both have 4 letters and 2 vowels. I can see how a brainiac might get them confused.

Allan, thank you. I still think I need to put a tally-mark in the "dumba**" column, though.
(In retrospect, I'm
really happy that I didn't get a job as a military pilot. In the end I can do some really clever stuff, but it's usually by getting four out of five things right and then, in the fullness of time, correcting the foulups until eventually I've got something pretty nifty. When one's foulups involve large smoking holes in the ground it's a bit harder to come back afterwards and fix them -- particularly if you're part of the hole.)