I really like Billy Collins' work. Funny wins me over every time. Here's a poem about teaching that strikes me as funny, true, and ultimately a little sad. "Introduction to Poetry" begins,
I ask them to take a poem
and hold it up to the light
like a color slide
or press an ear against its hive.
To read the rest of the poem, which is copyright protected (so I can't print the whole thing here), go to Poetry Daily.