Take the concept of xenomorph's eggs like food.
Not even a Klingon would be able to stomach these, even with their redundancies the acid blood would tear right through their bodies.
XD it's nothing that can't fix a good stomach protector, like omeprazol.
I'm pretty sure Hydrofluoric acid (What I speculate Xeno-Blood is made from) is stronger than Hydrochloric acid (your everyday Stomach Acid) I saw an episode of Mythbusters that showed Hydrofluoric acid can eat through flesh faster than Hydrochloric acid. That was during the "Breaking Bad" special They were testing whether or not Hydrochloric Acid can eat through both flesh and a bathtub, it was busted so they attempted the result seen in the show using Hydrofluoric acid and a fiberglass tub.
Eat them, before they eat you.
BURN THEM ALL HAHAHA !
are they dangerous