Pavel Belyayev, the guy who had to land the thing manually, asked Leonov to check their altitude. That little move cost them time, which cost them landing accuracy, which meant they were forced to land 800 miles off course in a part of the Ural Mountains so forested that no helicopters could land to rescue them. They literally had to chop wood for a fire and fend off wolves for two days while they waited for their rescuers, who eventually arrived on skis. The only way Voskhod 2 could have gone any worse would have been if Dan Aykroyd and Chevy Chase were the ones sent for the rescue.