Confused
True story which stills makes me smile: Couple of years ago I was working in Texas teaching commercial students most of which were Mexican! One particular student was very keen but struggled with the language and hence radio work at times became a bit of an issue. I had suggested to him that as a future professional pilot it might be good practice to add a polite 'good morning' or 'good afternoon' to his initial calls to ATC. Few days later having done a night flight to Austin and appropriately coffeed and refreshed we were getting ready to fly back to San Antonio and said student makes initial call remembering my 'words of wisdom'. "Austin Tower, N*****, Good Night". There followed an appopriate stunned silence then entering into the spirit of things, "N*****, Austin Tower... Sleep well"