I'm T2 and have found that pretty much any kind of grain or grain product will give me a huge spike – especially rice. Brown or white, it makes no difference. So I just don't eat rice anymore, ever. Also on my "never" list: pancakes, hash browns, any kind of cereal that comes in a box. And that's just breakfast!
Toast is my big temptation – I love it. Alvarado St. Bakery makes a decent organic flax seed bread with only 6 grams of carb per slice; most grocery stores carry it in my area (north Bay Area, CA). Here's the info: http://tinyurl.com/3budqj The slices are kind of small but it toasts up nice and I can have two slices with breakfast with no spike (I ride my bike 3 miles after breakfast most days, which probably helps).
(Interestingly, the same company makes a "diabetic lifestyles low-glycemic" bread that has FIFTEEN grams of carb per slice! Personally I haven't found claims of "low glycemic index food" to make much difference to my BG levels; I pay more attention to the total carb count and serving size.)
With fruit, it depends on the fruit. I seem to have the best luck with fresh raw berries, which are relatively low-carb and surprisingly satisfying. Strawberries, blueberries .... love em. Hard fruits like apples and pears are OK too. Tropical fruits (including citrus) have never been my favorite so I haven't tested much with those.
I know you asked about foods that are "bad" for us, but I guess for me it's more fun to think of things that are OK – so I'll also mention that I love chocolate. My favorite is the Lindt dark chocolate truffles, the little square ones in the blue flat box ... only about 2.5 grams of carb per square, and they're so good I can be happy with only one or two.