Same, I've only visited Czech Republic and Slovakia a few times, when I was living in Poland, but their food was as bad as polish food. Which gets my vote for worst food in Europe.
Haggis is lovely.
I've eaten pigs ears and cockerels crests in Spain, neither was particularly bad, nor particularly nice.
In Turkey i used to eat at a soup place late at night, they used to be open 24hours, selling soup....lentil, brain, tripe, or sheeps face. All good except the tripe soup, which just reminded me of eating overcooked tripe too often as a child. Lunchtime in turkey I used to eat a lot of cokeric (sheeps intestine) its soaked in milk, then wrapped tightly round a skewer and grilled slowly, like a doner kebab....sounds rank, and took me a couple of months to actually try one, but really delicious....
Also Turkey is the only place I've eaten "ram's eggs", which, again, are a lot nicer (and a lot fucking bigger) than you'd expect.
I'll eat most things, and enjoy them if they've been cooked/prepared well....
God, Polish milk soup, now thats not good, sort of curdled off milk/yoghurty type shit....and some of the Polish sausages, jesus fucking christ

. Obviously there were some excellent ones, but equally some awful unspeakable shit....
EDIT>>>>re:haggis...knock, veggie haggis isn't haggis. And it's well gay. I agree with TheSpade, yet again.
EDIT2>>>>a lot of the problem in Poland/Slovakia to me wasn't about the ingredients available, which were a bit limited in 91-93 when i was there, but that even with what was available, people didn't seem to have a clue about cooking, other than boiling for hours, and no-one seemed to give a shit about cooking things in a way that might improve on the bland shite they serve as a rule