Nuisance 0.7 now has another nuisance and has nuisance settings so that you can customize which nuisances you want to use.
Nuisance 0.6 has a new nuisance which (technically) tells you the password. Don't worry, it doesn't actually tell you the password unless the victim (sorry, end user) is clever.
Nuisance 0.5 has two more nuisances, plus fixes the shorter delay in version 0.4.
Now password-protected. On a user that hasn't used 0.3 or later before, it will ask for a password. Click icon to enter password and disable, click icon while disabled to exit. Password changing coming soon.
Now has a blank system tray icon which kills the program when clicked. Less obvious than "Click Here to Kill the Nuisance", but still obvious.
Nuisance 0.1 displays a nuisance (currently limited to random numbers) every 0 to 180 seconds, and has no way of exiting other than killing it the hard way. Caveat emptor (let the buyer beware).