Some days are like this.

[bunnyjadwiga]

“We'll try it,” the professor said to me, grimly, “with every adjustment of the microscope known to man. As God is my witness, I'll arrange this glass so that you see cells through it or I'll give up teaching. In twenty-two years of botany, I—” He cut off abruptly for he was beginning to quiver all over, like Lionel Barrymore, and he genuinely wished to hold onto his temper; his scenes with me had taken a great deal out of him ...

-- James Thurber, "University Days"