In that case, what is there to do but worker rush? Pull off 6 stalwart workers and send them across the map, while slowly pumping out workers 1 by 1 behind them to mine or join the fight.
This "strategy" is best suited for a two player map. A four player map can lead to you arriving at your opponents base to find 20 workers and a half dozen attacking units. But sometimes, even on Shakuras Plateau the need to worker rush can grab you.
Without further ado, here is my 6 probe PvT worker rush on cross position Shakuras where I lose my main base twice en route to rolling him over.
http://www.sc2replayed.com/replays/170539-1v1-terran-protoss-shakuras-plateau