[Ratchet catches that wince, his optics narrowing.]

Yeah, that sounds like it could be confusing. Let me take a look...

[He kneels next to Bucky and reaches out, starting to check him over and sucking in a soft vent of air when he sees the glass embedded in his skin. He reaches for the first aid kit and refrains from cursing, not wanting to worry Ironhide too much.]

Fairly sure this isn't supposed to be here. [A tweezing tool unfurls from his wrist and he gets antiseptic ready with his other hand.] This is going to hurt, and I need you to hold still anyway.