Bart huffs a small laugh, not quite managing a smile at First Aid's apropos assessment. When he opens his mouth again, it's with a curled lip and a thick Scottish accent, recounting one of the logs that his fathrr had left behind:

"I turned 80 years old last week. I thought I had another 80 in me, but marooned on this planet there's nae swappin' out of my liver when the old one fails. Here, I'm mortal."

Then he lapses back into his own normal, gentle speech pattern . "I have been. As much as I want to be useful, I seem to be failing more than I'm accomplishing. If I focus on just this one thing for a bit, then...then it should be better."