Prawns are just nasty or anything you eat that can stare back at you. As far as pies are concerned Hobgoblin/Fray Bentos pies are for crack addicks. Sprouts are vile and as a kid I used to try and squash them under the table and hope they stuck to the join long enough so I could at least get me pudding, of course a few minutes later they would drop down and even the dog swerved them. The thing that I hate the most is liver. Ghastly food.
Liver tends to have tubes in it, which can be a little off putting. As for seafood & prawns, I believe we all know a Global Moderator who is keen on them.