Slightly off topic but a hobby I've picked up recently is breaking web based "no copy/paste" schemes.
Usually people map onmousedown,click,oncontextmenu, etc. events or some permutation there of to return false and have an alert that say's something to the effect of "no copying!"
You can easily defeat those by mapping whichever function to null on your javascript console. ie:
document.oncontextmenu = null
In an interesting twist they've actually used css. That is every vendor permutation of.
user-select: none;