I can't force quit an app (Wine)! I installed Wine to open an .exe file on my Mac. I think I did something wrong and when I opened the file it installed to the Applications folder. Now, It doesn't let me force quit. I tried clicking "Force Quit" from the Apple menu and it didn't work. Now I can't turn my Mac off.

How can I force quit the Windows application running under Wine on my Mac?
Use Terminal to kill the Wine process.
From the Wine FAQ

10.2 Crashes and Freezes
10.2.1 My program froze up, how do I close it?
If you ran the program from a terminal window by typing wine
program.exe, you can usually just go back to that terminal window and
press Ctrl+C. If you ran the application some other way, such as from
a launcher shortcut, then you can open up a terminal and forcibly kill
the process:
killall -9 Application.exe

If you want to kill all Wine programs at once, you can run:
wineserver -k 

You can also open up a Wine version of the Windows task manager by
running wine taskmgr in a terminal. This will allow you to kill
individual Wine processes.