Thee charity's checklist also includes simple pleasures such as running around in the rain and bug hunting, setting up a snail race, flying a kite and making a (delicious) mud pie.

It won't find every bug — you still need to do unit testing and acceptance testing — nor is PMD a substitute for a good debugger when you're hunting down a known bug.

And so to Cambridge, where he spent less time on theology than on "bug-hunting", his insect collection was outstanding.