Something I saw yesterday
I was driving along a street which crossed railway lines in some meters, and I saw a weird sign. I was so stunned that I drove back to fetch a camera.
This is the street, at the right side are the railway lines. The sign is where the red arrow is.
The red arrow points to this sign:
Well, I *had* to look it up. HET means an auxiliary power-on button to activate a railway gate (HilfsEinschaltTaste).
I am thinking about making an icon of it. Maybe crisscrossed in red ;-).