When I was 16 I helped my father and his friends by cracking a laser scanning software they got their hands on which required a hardware key.
Thanks to Ollydbg, I just had to open the executable, find the error message and change a JZ to a JNZ *. Incredibly easy if you know how to, but you look like a cool HACKERMAN to everybody else.
Sadly, my professional life nowadays as a full stack engineer is much less glamorous than cracking software for street cred.
* A NOP would have been preferrable in retrospect, though I like the idea that with my patch you'd get locked out iff you have the hardware key.