my mom got herself hospitalised cause a crab played dead and later grabbed her middle finger when she tried to pick it up( thinking it was dead) and mercilessly pinched it and refused to let go.
it was so serious that she had to go for an operation, and had to have her whole nail removed to take out the pus.
Unfortunately they couldn't find the bacteria so they had to scrape the nail bed off as well and dig under to locate it. :(
Eww, and she was awake and listening to them having their gruesome discussions about her hand some more because she was only on local anaesthetic. :(
So she had a total of four incisions on her middle finger, plus one more on her ring finger cause they wanted to see whether the bacteria had eaten it's way through.
Poor mommy :(

I have decided that digesting chem concepts is as bad as trying to swallow hair.