After doing a round of water testing on my tanks I forgot to wash my hands and reached into one of the tanks to position something.
Within the hour the featherduster had come out of his tube and died, a Peppermint shrimp died, a Barberpole goby died, and a Bengali cardinal died.
I did a couple of emergency 80-90% waterchanges and managed to keep a camel shrimp, a Rainford goby, and some crabs alive.
Since then I've been fanatical about washing after touching any testing chemicals.
I bought a pair of arm-length reefgloves but I can only use them when I'm not working with something delicate because they're too thick IMO