Beware of the ass.

From the BBC World News yesterday:

A series of rocket attacks have hit hotels and the oil ministry in the centre of the Iraqi capital, Baghdad. Rocket-propelled grenades launched from a donkey cart hit the Palestine and Sheraton hotels, in a heavily-guarded area in the heart of the city.

At least one person was wounded at one of the hotels, which are both used by foreign reporters and US companies.

"It's certain that you'd have the element of surprise by using a donkey cart," Colonel May added.

I think I remember reading that in Sun Tzu.