Whistling Craftsmen

Grown up in a dynasty of plumbers, I know, that there is one sound you should be afraid of:
Whistling.
This could be good news, but 90% of hearing it, well be bad.
hey do whistle while thinking.
And thinking in that business ist really bad.
It involves always more working, longer duration and more tools.
Plumbers just love heavy tools.
But not today.
The water tap was exchanged within 15 Minutes..while whistling!
And now.. I have to clean the bath.
Hooray!