kitbag question

Etymology
. An apocryphal tale of the term's origin involves a squad of soldiers in the Israeli Army: "A commander tells the soldiers, 'We're going on a 5 mile run'. And some dip asks, 'Do we have to bring our kitbags?' At which point, the answer is yes. It wouldn't have been if the soldier hadn't asked the question."

The story is retold with some variation, but always involving a commander telling a subordinate soldier to run with his kitbag.

Noun

 * 1)  A question which causes a disadvantage to the asker simply by virtue of being asked.