According to my husband, a man in possession of an infinitely sophisticated sense of humor, it's because
"They don't know the words."
Now that we've gotten that out of the way, I'll show you my boring hummingbird sketches.
Why hummingbirds? My mom enjoys them. We were recently in a store that features local artists and she took a'likin' to a watercolor painting of a hummingbird. I said "It's too bad you don't know anyone who could, you know, paint a hummingbird for you."
Long story short, I'm painting a hummingbird for my mom for Mother's Day. I hope it turns out well, but I'm her only child so she's got nothing to compare it to...