The "Caccolube" was a simple but effective device to disable an enemy vehicle. It was a condom filled with abrasive powders and crushed walnuts, and was dropped into an engine crankcase. "After the engine heats up," the OSS manual explained, "the hot oil will deteriorate the rubber sac and free the compound into the lubricating system.
"When circulated through this system, the compound fuses and welds the moving metal parts of the machinery. Slipped into a truck, the Caccolube takes effect after the truck has been driven from 30 to 50 miles. It reacts so thoroughly on pistons, cylinder walls and bearing journals that the vehicle is not only thrown out of service but the engine is destroyed beyond repair."
This lethal "lube job" replaced the original effort using sugar, when it was discovered that sugar actually promoted better engine performance in the vehicles of that era.
Source: Jack Anderson, "Rare arsenal used by spies," Santa Cruz Sentinel, Mar 9, 1987.

The boy had apparently asked other dentists in the area to remove his braces before visiting Carstens' Mack Avenue office on Feb 8, "probably because he lives three or four blocks from my office," Carstens said. "He (came) in to see me and said he wanted them off. I said he wasn't finished with his treatment and I couldn't take them off without a letter from his parents and his regular orthodontist.
"I had him in the chair and he leaned over and pulled the gun out of his pocket and said, 'Would this make you change your mind?' and I said, 'Yes,'" Carstens said.