If a ship was sailing in the middle of the ocean, a navigator could make mistakes using dead reckoning and no harm would be done.

VOA: special.2011.07.06

The sculptures were made using no supports, so they could fall over at any time.

VOA: special.2009.07.17

Given that Qatar is not a state party and that Qatar has invited the Sudanese president, and he would very likely be using his personal jet, I see no risk at all in him traveling there."

VOA: standard.2009.03.23