Familiars and Temporary Con Boosts

[Velxir]

So say I have a level 8 wizard with a familiar.

A skald starts singing, and my familiar accepts the rage. What bonus hit points would he get from the +2 con boost, if any?

[Chess Pwn]

Familiars gain no HP from their con. But if you accepted the song your familiar would gain half the HP you gained.

[TheGreat_OldOne]

Chess Pwn is correct. A familiar's total hp is always half of its masters hp. If the masters total is increased or decreased for whatever reason, the familiar's total hp changes accordingly.

[Dave Justus]

Familiars don't benefit from temporary hit points on the master of course.

By pure RAW, I think that for a temp con bonus, only one on the master not the familiar would apply. I'm not sure this is intended, and doing it differently would be a reasonable house rule.

[Velxir]

So the Familiars max HP is always a dynamic pool based off of the masters?

So if the wizard took negative levels or suffered from CON damage, the familiars health would scale down with his?

Seems weird but I guess thats how its written RAW. The only thing I can find that breaks that trend is the Mauler Familiar's "Mauler's Endurance" feat

[Chess Pwn]

and maulers familiar references the master's hit die, showing that familiar HP is all off of the master.