KCAU9. “It really upset me,” the teen told Des Moines-based CBS affiliate KCCI in a separate interview. “And I had no idea that that was coming, so it really caught me off guard.”Stucker’s mother, Jennifer Larson, said the abrupt change — which came more than a year-and-a-half after school officials agreed to permit her son to use the boys’ restroom — took her by surprise as well.“I was not aware that there was any issue prior to them calling Ethan,” she said “And after the fact Ethan called me from school and he was crying and very upset.”Larson said school officials told her that the change in policy was prompted, not due to concerns about safety, but because a student may have felt uncomfortable about sharing facilities with transgender.