I Did Not Know

According to these safety tips, leaving wet clothes in the dryer is not only a stinky proposition but a dangerous one:

Leaving damp clothes inside the drum may have adverse effects. A chemical chain reaction may occur when and if the conditions are right. Spontaneous ignition has proved to be the source of numerous laundry fires. The damp cloth plus the hot dry environment creates the conditions that support unassisted combustion.

In any event, the lint trap and the dryer have now has their past-due cleanings, so we're open for Manners again. teh Yay™!