A gem from the Bank's intranet page: HeroRat is a program by Belgian and Tanzanian researchers in which African pouched rats are trained to sniff out landmines. The rats, which grow to the size of a small cat (around 6 pounds), are too light to set of the landmines if they crawl over them. They've also got an 80% success rate of identifying tuberculosis, with 10% false positives.
None of which will make Belle feel any better about six-pound rats crawling around. This will be a real complication if I decide to get a job in a mine-infested region of Tanzania.