You can be mature and respectful and still have a dirty sense of humour.
You can curse a lot and still be highly intelligent with a massive vocabulary.
You can be quiet and reserved and still be witty and even outgoing in certain circles.You can be intelligent and sharp-minded and still forget what month it is
I still haven’t responded to that one guy from uni who after two months finally send information so that I can give him his money back. If you can wait two months before sending the information I need, you can wait some more before you get the money back. Asshole