World Props non-physgunable - users DarkRP

I was just wondering how i could make any world prop not able to be physguned by users.

Right Click > Make Persistant

? is there a general permission or something

No. Hold down C, right click and make it persistent.

But its a custom map and theres A LOT OF WORLD PROPS !

I think with FPP, you can disallow users from targetting world props

Don’t hold me to it though

FPP ? plz explain

hook.Add( "PhysgunPickup", "fuckyou", function( ply, ent )
    if ( ent:CreatedByMap() ) then return false end
end )

lua/autorun/client ?

[editline]16th January 2014[/editline]

or server

server obviously.