"I was shot, Shepard, my throwing arm is not at its best." Healing is not really working at the moment, as all magic is out of bounds and Istredd hasn't been able to successfully do any spells. They do keep trying just in case, because he doesn't really like feeling helpless in a situation where they're already on their back foot trying to survive. But he likes gallows humor so joking around with Shepard in this situation feels natural.

"Fuck is very commonly used among my people, everyone gets frustrated, it's practically a comma in a sentence to some." Not Istredd, obviously. He will use is only to really underline something in a conversation, or if like here, he's exhausted and in pain and very, very sick of their circumstances. "Quad, I'll have to put that into my vocabulary. What about you?"