Had a few #1 calls, as well; never a #2, though, always able to stay pretty well-regulated.

Even waist-high corn doesn't always help; a few years ago, on a small group ride (my bud and his girl), she had to go #1 -- BAD! But she refused our suggestions to water the cornfield, even when we told her we'd be in the field across the road for her privacy's sake. We wound up slow-rolling the last 8 miles home, her gritting her teeth, because she refused to 'let go'. It was the topper to a perfect day -- a 35-miler turned into 50 because of a poorly-marked route, and she had to be coddled. I didn't mind the extra time/distance in the saddle, but the last half was about as much fun as a binge hangover.