I got a manual for a MEGGER CBT3 Residual Current Circuit Breaker Tester. It's got 24 pages, and on pages six, there's black and white picture of some device; I never used a residual current circuit breaker tester, so I guess that's what they look like. The manual must have been locked away for years in a drawer or a locker or something, its smells like old people's homes, so I took it to the park 'cause I never do that with my grandma and I sort of feel guilty about that. I took a book with me and spent about two hours in the park, and it felt like sunday. Didn't read the manual yet, though. So, thanks a lots, Simon and Marceline.
Adrian, Zurich, Switzerland