If you do as they ask and it doesn't come out *perfect* (remember you have no spec, and you still have to do your normal job too) there is going to be trouble.
If you do as they ask and it does come out perfect, you've set yourself up to get *more* things like this in the future, until you hit paragraph #2.
Brush up your resume...if they aren't going to listen to you, then you may have to find another job. Good bosses do exist.
Good luck and don't loose heart...this has happened to others before...
perl -l -e "eval pack('h*','072796e6470272f2c5f2c5166756279636b672');"