It is pretty common in Czechia to give advices to your collegues, even your bosses - what they could do better, what could be done better in development, etc.
In the near future, friend of mine is going to business trip to Germany. I have heard something strange I dont understand. He has been told by his boss, that he definitely should not give advices neither to his German collegues nor bosses, because it would most likely offend them if they have been told how they should do their job.
It is well known Germans are a little bit uptight so it seems it might be true. Is it? May German be offended if you would give him an advice ?