I am observing that every passionate learning tester have tried doing things that are not testing and try to bring in some learnings to testing from doing them, to test better. For instance, Michael Bolton has tried cooking and theater and has benefited by it in testing, you could read his interview in which he mentions that. Michael Hunter (a.k.a The Braidy Tester) has recently blogged about Drawing and how it has been helping him to test and think about testing. Jonathon Kohl's Exploratory Testing-Music of Investigation is no exception. Bach brothers ( James Bach and Jon Bach) are active in Chess.com and you could read how playing Chess helps to test better by reading Jon Bach's post.
CAST 08 has its theme "Beyond the Boundaries: Interdisciplinary Approaches to Software Testing". Interdisciplinary approaches drawn from diversified branches of learning or practice, such that insights can be drawn upon and synthesized to influence a particular craft.
Anuj Magazine, an experienced tester from India has been working for quite sometime on Graphology and Software Testing.
I wanted aid his research and agreed to share my handwriting because his research is to identify the traits in successful testers. You can read the analysis of my handwriting by clicking on this link. I hope you'd enjoy reading the analysis and might be of help to Anuj if he approaches you.
I am sure there a lot of untold stories of what else other than testing has helped them to test better. I hope a lot of other testers come out with those stories that might benefit the community.
Pradeep Soundararajan - http://testertested.blogspot.com - +91-98451-76817 - firstname.lastname@example.org
"The test doesn't find the bug. A human finds the bug, and the test plays a role in helping the human find it." --