Not oysters, but crabs - up all night violently ill about an hour or so after eating them - haven't touched seafood since as I think I may be allergic to it.
There were about 20 people at the 'crab party' and no-one else got sick.
Maybe I also just got a crab that was off, but I wouldn't risk it again as I was very ill.
My party or the Floozie's party? Yes, but very little. 'Twas in the awful dry country that is Kuwait. Must have had all of one glass of wine with the dreadful crabs!
Should have left when we arrived and saw plastic sheets draped on the tables, no cutlery and wooden mallets!