stumbling

After an hour or so the light faded away, and they found themselves stumbling along in the darkness.

Finding they were determined to go, the Winkies gave Toto and the Lion each a golden collar; and to Dorothy they presented a beautiful bracelet studded with diamonds; and to the Scarecrow they gave a gold-headed walking stick, to keep him from stumbling; and to the Tin Woodman they offered a silver oil-can, inlaid with gold and set with precious jewels.

That would be very romantic, but one would have to be very good to be a missionary, and that would be a stumbling block.

We’ve each got a stumbling block.