Locks and lockpicks

[Sir Prize]

I am sceptical about this idea since I am a lover of Redstone locks on doors and such, and could simply build a complicated lock.... Which people unfortunately would grief through and the whole thing would be a waste of time.

But, not all players may be that good with redstone, so I support this idea. The only problem is, as The Black Sun here graciously poined out, that people can combat log. I think this should be banned, because since when did people just dissapear when they did not want to fight?