Children have been burned by sparks from trashfires, open flames of stoves, unscreened fireplaces, contact with pilot lights of space heaters, or by sticking ' metal objects in wall sockets.

I can't wear wool underwear: it tends to arouse me at inappropriate times.

....then hor... ― ...and then...

The next step is having the students offer their own examples and nonexamples and also list them in the proper columns. At this time, the students should be able to explain or justify why their offerings are examples or not.