The sentiment probably would have been the same by leaving a vial of innermost energon like a normal person, but once First Aid has some coherency he probably won't complain.

He's very tired, but loss of active energon and a weak spark pulse would do that. When he wakes again, his hand twitches, clumsily brushing over Sixshot's nose. First Aid is uncoordinated-- it's hard for him to really make sense of his movements, so at first he doesn't realize what he was touching.

Slowly, his optics online, and he turns his head -- that was easy, just flopping it to the side -- and focuses on the large bulk at the side of the slab.

"Kffft." He spits confused, sleepy static from his vocalizer.