I've managed to damage the interior of one of my artificial knee joints. As a result I will have surgery this week on the knee. We won't know the seriousness until the surgeon takes a look. I won't be posting for a while as a result. In the meantime, here is Emily Dickinson's poem (1830-1886) entitled Surgeons Must Be Very Careful:
"Surgeons must be very careful
When they take the knife!
Underneath their fine incisions
Stirs the Culprit—Life!"