In my opinion unless you speak the language you shouldn't be allowed to work in an environment where your ability to read the language/signs could mean the difference between life and death. Seems like a quick way to make a widow a rich lady.

In an industrial setting the Europeans have the right solution by using symbols for everything. As funny as it may be this skull and cross bones is probably a very good universal 'go away' indicator.

Reminds me of the conveyor systems at our site. Some have signs that say 'caution: pinch point' while others have the graphic of a hand being separated from the fingers between two rollers. It looks a little stupid but gets the point across.

RSlater,
RSmike