An excerpt from a grading sheet for a paper:

"Dear Andy,

Even though you may have been feeling under the weather and therefore not up to the standard of your usual sparkling wit and articulation, your analysis of the sonnet is quite good, and I especially appreciate your relating the many formal disjunctions in the poem to Wordsworth's distraught state of mind..."

Having my sickly, neglected ego inflated by a professor never, ever fails to brighten my day.