my eyes hurt

I appreciate the normal use of capitalization in all correspondence, especially email.

ALL CAPS -- ESPECIALLY WHEN A SLIGHTLY CONDESCENDING PROFESSOR IS ANSWERING QUESTIONS -- MAKES ME FEEL UNPLEASANT. (PLUS IT'S HARD TO READ.) I REALIZE HE IS TRYING TO DISTINGUISH HIS ANSWERS FROM MY QUESTIONS, BUT I'M SMART. I CAN FIGURE OUT WHEN MY QUESTIONS END AND HIS ANSWERS BEGIN WITHOUT FEELING LIKE I'M BEING CHASTISED. I THINK I'LL JUST GO TO OFFICE HOURS FROM NOW ON BECAUSE THIS IS TOO MUCH FOR MY PRESENT DELICATE STATE OF MIND.

whIle I'm On thE sUbjEct, thIs mAkEs mE wAnt tO hUrl mY (or is it 'my'??) cOmpUtEr AcrOss thE rOOm And sEt It On fIrE.

this is much less offensive to me, but it should be limited to very informal emails. i once got an email like this from an attorney at one of the most well-known asian-american non-profits in the country. to top it off, he signed, "thx." who does that?