Gas safe?

[Justin Passing]

Struggling to believe it didnt leak gas tbh.

That's pushfit isn't it, assuming the white stuff is being discussed not what looks like garden hose?
Higher pressure tends to make them grip tighter, so they may be more likely to leak at lower (gas) pressure if the pipe's disturbed. Especially if someone forgot to put the liner in the pipe.

 

[noseall]

Plumbers moaning about dodgy gas pipes whilst butchering joists and rendering many a bathroom floor unsafe, in the effort to move shower waste across floor to SVP. Good faux concern from the nations joist butchers.

 

[Justin Passing]

Long story short - an ex tailor's place which was a basement and the street level space, in central London. He'd had all sorts of tailoring equipment in there. It was all heavy, everything was placed on sheets of marine ply and ah-hoc pallets. The stuff in the basement was assembled down there, and had fouled the joists. So they'd cut out what they needed and put in extra bits of support to sister joints, etc.
I got it empty. The refurbers unscrewed all the boards and pallets on the ground floor, to strip them out.
Phone rang at 7 next morning. The next lads, in early, had the floor collapse under them, into the basement.
And it took the plumbing with it. Not the plumbers' fault, that time.