Perfect timing, mother
There’s nothing that can ruin an online meeting more than a screaming family member. Right when the OP was going to answer a question from the teacher, the OP’s mom decided right then and there to scream at the top of her lungs. We don’t blame her, it was dinnertime, after all.
But the timing seriously couldn’t have been any better. It must’ve been really awkward for this student and the teacher and incredibly funny to the classmates. We’ve heard weird things going on the background of online meeting participants. They usually involve screaming children, though, not screaming moms and dads.