buggy foods???

Question

dear rabbis, if i'm by a simcha and the veggies ie. broccoli look bodek can i assume it is and eat it? what about mushrooms( do they still sell those buggy ones from China in the stores?last time i checked i couldn't find any of those kind) if i really thoroughly check let's say 2 or 3 bags of dole lettuce mix and do not find any bugs do i have to be concerned about buying that kind of lettuce? Speaking for everybody, we all think it's amazing how you take out your time to answer any kind of question to mostly people you don't even know!! Now that we all must admit is the epitome of Ahavat yisrael! Everyone feels that they can ask anything and everything that's on their mind. That perhaps without this site they would never be able to ask the questions they wanted to bec. unfortunately we get scared about what the reaction might be of the person wer'e asking. Bottom line is thanx and G-d should bless you and your families!