John Rumm wrote:
Chris Bacon wrote:
This technique can work for reparing a L&P ceiling - push it back
temporarily and then pour extra bonding plaster on top to stabilise
it...

Something odd about the attributions here.... however, WRT repairing
P&L ceilings, if the nails have let go (rust or pull-out) this is a
not recommended repair.

Should help to keep it in one lump when it falls down though ;-)

Oooch. Might be a bit hard getting it out of the door (or down stairs!).