How to prevent filled plasterboard ceiling screws popping again (Ed.)

If it wasn't in the wood - why would it pop out?
I would have thought that it would just move with the plaster board....
I thought it was the board moving against the screw that made the plaster pop off...
 
Indeed, if the board moves but the screw doesn't then the screw head goes through one board side or the other depending on which way it moves
 
If the screw has been overtightened it will keep popping , put another screw in to side of it(30mm away) to prevent further movement .

I do the same thing when I come across popped screws. Works for me.
 
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