Is an electrical cable allowed under the shower?

Example not my shower

You have to make up your mind. If you want to install a lamp out there, the cable just runs that way. Otherwise, you have to move your lamp. Again, I wouldn't have any concerns about that. But I'm laid-back about these things. On our ship, an electrical line sometimes runs through areas where water can pool, and everyone is still alive. [FI Schutzschalter]! Karsten

It's already all plastered...

I just wanted an assessment from you.
The electrician said it's okay and I didn't have the energy to ask for everything to be redone.

The neighbor said not compliant (also electrician)

On board with us, such a power cable sometimes runs through areas where water can accumulate, and everyone is still alive. RCD!

Boats are built particularly close to the water and have a wall thickness where you can't cut any slots. , sometimes I really wonder if you go to your mailbox without a helmet

Yes, I am a bit special.

Here in the forum, I dare to ask this.
In real life, people ask me what is wrong with me.

Treat yourself to a few days of Wacken in August. After that, you won't care about such cables at all. It's not that far from you.