Relax lah brudder....
The night before my CS1101C written exam, I found this C code for
finding anagrams on Google.
I thought I already had a lot of reference notes to bring into the
exam hall, so stupid me didn't bother to print it out.
As it turns out, there was one 25-mark question on writing a
program to find anagrams. 
Stupid me was practically banging my head against the table top for
not printing and bringing that code. After all, all I had to do was
do the necessary modifications to the preexisting code and transfer
it to paper.
It was a free 25-mark question, and I blew it. 