My freshman roommates in played their music loud and late because they didn’t have any classes at 8:00 am. I neither shared their taste in "music" nor their non-morning class schedule so many a night I would stumble into the kitchen squinty eyed and sour faced and request a volume adjustment. I met with much resistance and it was later brought to my attention that if I just asked nicer, than they would be more accomadating.
So the next time it happened, I fluffed my hair, opened my eyes and with a smile on my face said to them, "dear roommates, as much as I enjoy the sounds coming from the kitchen at this late hour, and as much as I desire for you to have as enjoyable a study session as possible, the volume is a bit much for my tender ears. Do you think it would be possible, do you think you could maybe please turn down the sound so that I may be rested for my early classes tomorrow? Oh please oh please, it would mean so much to me."
Fine. Not that exactly, but I did say please. And I did try to smile.
And despite my best efforts I was told that I was still not very nice about that way I asked for them to turn their music down. (I have since concluded that most people just don’t like being told what to do no matter how pleasant you are about it, but that is a topic for another time.) So I continued to try to improve, and they continued to shut me down. And I continue to experience this kind of thing in my life, because I am unfortunately cursed with the I-will-offend-you-no-matter-how-hard-I-try-to-say-it-nicer-if-there-is-even-a-remote-chance-that-you-could -be-offended-by-the-content-of-my-comment disease. Sad but true.
And it is apparently genetic. 
The other day I asked Engineer ever so nicely to please clean up his toys (okay, I TOLD him to with a snotty tone) and he in return told me to ‘GO AWAY’. I reminded him that he should not speak to me that way and that it made me sad when he talked to me like that. He paused, put a sweet, if not slightly whiny, tone in his voice and said, "Mommy, will you please leave because we are just so sick of you."
I laughed. And then I grounded him for life.
And then I wished I had not passed him this particular legacy.