<function name="DeleteOnRemove" parent="Entity" type="classfunc"> <description>Whenever the entity is removed, entityToRemove will be removed also.</description> <realm>Server</realm> <args> <arg name="entityToRemove" type="Entity">The entity to be removed</arg> </args> </function> <example> <description>Creates a second chair in spawned jeeps that is removed when the jeep is removed</description> <code> hook.Add("PlayerSpawnedVehicle", "VehicleUpgrade", function(ply,vehicle) if vehicle:GetClass() == "prop_vehicle_jeep" then local seat = ents.Create( 'prop_vehicle_prisoner_pod' ) seat:SetModel( "models/nova/jeep_seat.mdl" ) seat:SetPos( vehicle:LocalToWorld(Vector(21,-32,18)) ) seat:SetAngles( vehicle:LocalToWorldAngles(Angle(0,-3.5,0)) ) seat:Spawn() seat:SetKeyValue( "limitview", 0 ) table.Merge( seat, { HandleAnimation = function(_,ply) return ply:SelectWeightedSequence( ACT_HL2MP_SIT ) end } ) gamemode.Call( "PlayerSpawnedVehicle", ply, seat ) vehicle.PassengerSeat = seat vehicle:DeleteOnRemove(seat) //&amp;lt;-- vehicle:DeleteOnRemove(seat) //&lt;-- constraint.Weld(seat, vehicle) end end) </code> </example>