Whenever I drill through a wall, I try to work ot where pipe might be and use a metal detector.
Always been lucky with pipes, but I have hit random electric cables relying on the safe zones principle.
90s properties are the worst for this.
I had this recently, the joiner had replaced some floorboards in the bathroom, he had even marked in pencil where the pipes were, he still managed to go through the gas pipe!one of the last screws had gone through the gas pipe!
Nice to see he has thought about catching the dust