HP Relief valve failure

so, the kid texts me a few days ago that is HPFP is fucked, because its making a noise. I rolled over to his place with an OEM pump I had laying around, do the swap, he heads to work, I finish up, drive around the block pulling a log. It has shit pressure, and I parked it and headed home. we get together a couple days later , The KOEO is 68, so he ubers to my house and borrows my valve.

he just texted me that his valve appeared to have "physical damage" that he tried to get a pic of. I haven't seen the pic, but my question...........
is it possible that a piece of that valve dropped into the fuel rail ??

 

I can't picture how....