DD is at secondary school. Lessons finish/next one starts at the same time. Normally it isn't a problem, because most teachers appreciate that it takes them time to get to the next lesson. However on Thursday mornings, she has 2 lessons before break. First lesson on Thursday, teacher always lets them out exactly on time or a slight bit late. Next teacher is on the other side of the school and hands out detentions for being more than a minute late. Last Thursday, everyone who had classes in that order were in detention at lunch, including my DD! AIBU to think they should either give them a 2-5 minute passing period or be understanding when they don't arrive completely on time?