dear Professor K...

Your dedication to your profession, evidenced by you coming in to lecture despite being sick with a major sinus infection this week, is admirable.

One must wonder, however, if it ever crossed your mind that, in your noble efforts toward our edification, you might infect all your students along with teaching us the finer points of interpreting NMR spectra - particularly those of us who, because of poor vision and even poorer hearing, sit nearest to you in the front row.

I'd love to ask you this question in person at lecture tomorrow morning, but right now, I'm not sure I'll be well enough to attend. Thanks, thanks a lot.