Everyone misses the bus sometimes, even Ellen Degeneres I guess.
I missed the first 6 Richmond in London today at 8:10 for an 8:30 class. The key is to not freak out. Consider how popular the route is before you call a taxi. I waited a few minutes and saved myself ten bucks. It helps if your class is early enough, sleepy professors are still waiting for the caffeine to hit them before helping 40 media students figure out DreamWeaver.