Sound advise from the soviet era.

I just remembered I made this picture when I was in the abandoned city of Pripyat in Ukraine this summer, where I was on a 3-day tour in the Chernobyl exclusion zone.

This is an educational poster from a school, with the soviet version of Disney / Warner Brothers characters, teaching kids not to use home-made / makeshift fuses

The guide probably pointed this one out to me because I was the one in our group toting a DIY Geiger counter.