How many means does "Neved mind" have?

happy mood: after you help someone, he/she often say 'thank you'. you can reply with 'never mind', similar to 'you are welcome'.
normal mood: someone may step on your foot. he may say 'sorry'. you can say 'never mind', which means 'don't be bothered'.
angry mood: someone may broken some your thing. he may say 'sorry'. you can say 'never mind', which may mean 'i'm angry, but i do not want to fight with you'.
often, the mood is accompanied by temper and sound of the word.