I have been working for months to get the final collectible for one of my tribes. Every day, I have my tribal chief lecture, and then when everyone has gathered, I have her point out a rare collectible. Finally, today, I got the final collectible that I needed. I grabbed a child, set her on the collectible, and guess what? Unbeknownst to me she was sick, and she was too slow to make it to the research table. I'm not sure I have the patience to go through this again!