One was too opaque to see. Another was clear. I will weed the clear ones out now then, I suppose. Crack them open over the sink and hope I didn't make a mistake.
edit: Yay, they were in fact both bad! The yolks were scrambled, and one had a blood ring. The three I left I partitioned off with...
So I only have 5 eggs in the bator, and it's past day 14. I haven't removed any due to the small number of them, but this recent rash of egg-splosions has me worried. We did have one egg that smelled a little hard-boiled if you got real close and took a whiff, but the shell is too thick to get...