C++ - Created any cool programs?

Me and my friend created this cool little application/program/other thing with C++.
Hehe what it does is when somebody opens it, it will ask: pik one: Yes or No. (spelled like that LOL!) and if you pick anyone of them yes or no then it will automatically shut down your PC.
Im sure alot of you have created something like this before but its still so funny! LOL!!

What about you guys? Ever created something in C++?

how did you make that cool program. is it hard to learn about some basic coding in C++. i think it is really great and satisfying to have created your own mini program .