TMI or NEI?

Let's say it's an issue of accessibility, but I always leave open the front gate. Could come in handy in the event of an emergency. The problem: sometimes monsieur l'homme makes a break for it and tumbles into the...uh...parkway--past the first level, we'll say, but not into the open air. He can't go far, I know this; but when I'm speaking in front of a class full of twenty-somethings about a Sharon Olds poem--which, of course, is quite sexual--well, the realization of having "breached level one" can be both uncomfortable and shocking.