private void initInsideFences() {
		for(int i = 0; i < 20; i++) {
			Fence newFence = initRandFence();
			if(!(grid[newFence.getX()][newFence.getY()] instanceof Fence)) {
				grid[newFence.getX()][newFence.getY()] = newFence;
			}
			else i--;
		}
	}