Me to female faculty next to me, in an undertone: "If the CEO were a jerk who had failed to account for my personal health and comfort, HELL YES I would get up and leave. Jackass."
Middle-aged African-American registrar staff member, to everyone: "That's nice but you should also remember that in a three-hour lab, with female students in your classes, sometimes they do need to go the bathroom. Or people are sometimes ill. So... no."
Head of the college: "And we had to modify some of our physical requirements because the female students just couldn't keep up."
Me: < envisions stone gargoyle falling on his head >
(By the way, people, 2.5 hours is too long for the pregnant lady to sit still without a bathroom break, and she WILL get up and wander off for her health and comfort whether you're on schedule or not, and NO, not drinking water will NOT work. Look here, old white dudes: I. Don't. Care.)
*Note I do not say typically. Though that may also be, on average, accurate.