Dear Merlin, Samantha Burns was preggers! But like, she wasn't even doing anything to cover it up. Striding into class and blurting out that she had morning sickness like it was nothing. What sort of a way was that to behave?
If that happened to anyone Selwyn knew, the family would tell everyone she had dragonpox or something and then she'd get sent away to the country house "to recuperate" and wouldn't come back to Hogwarts till a year later, even if it did mean being a year behind everyone else. Actually staying at school in Samantha's condition was scandalous. He was kind of surprised the school let her do it.
And then there was the whole issue of what the girl ate, or rather, didn't eat for breakfast, and how exactly did she even get pregnant anyway? Selwyn was old enough to know what the birds and the bees got up to when they loved each other very much, but he was pretty sure the undead didn't work it like that.
Suddenly, herbology was even more interesting than flesh eating plants.