Not to sound like the grumpy old hardass, but how about flying the leg then calling crew scheduling and your CP to let them know why you will not be on the return leg?
How much use is the PRP going to be if you lose one at rotation? How much professionalism is he displaying to his FO's, some of whom in today's world of 300 hour wonders will undoubtedly think he is a funny guy, and will one day attempt to emulate him.
There's already enough negative press out there at the moment without guys with this level of professionalism setting the industry up for more negative reporting.