Put in a headturning mechanism during lockpicking then. I wouldn't mind even if the minigame was scrapped altogether and let the character do that job while the player keeps watch (actually, I'd prefer it that way).
I would love lock picking (and hacking) to be a progress bar with the time depending on charter skill and task difficult. Having to have time to sneak in to a hallway, pick a lock, open the door, enter the room and close the door behind you, all before the wandering guard came back around and spotted you, so much more interesting.
Of cause if you already killed everything in the area, then that suspense is kind of a mood point, but it is not like the mini games in Fallout 3, Oblivion, and Alfa Protocol have been any interesting anyway.