Angry Babushkas!!!

So today was interesting...We ended up going to the wrong classroom for what we thought was Russia and the world in the 20th century (at least that's what it said online), but it was changed at the last minute (which we didn't know about) and ended up in a 4th year class in the business faculty instead of the 2nd year class we where looking for. Also, when the professor walked in, all the students stood up. We were sitting in the front and didn't notice it, but then we stood up. We were maybe half a second or a second slower than the Russian students, and the professor got mad. She gave us an evil stare, and then asked what we where doing there. We said that we were the non-Russian students and were their for the history course (it was actually a business etiquette course). She told us we were in the wrong place, and we left, all the while she was giving us the stink eye. I have never seen this before in any of my other Russian classes before. It was weird almost militaristic (the standing at attention upon professor's entrance). I've heard that that's customary in Russian high schools, but not in college. Maybe since she was older, that is what she is used too.

Which brings me to another point, why are all the older people (especially all the older babushkas) extremely rude? From old women stepping on my feet in the metro, pushing me out of the way to get on the train, why? The sketchiest looking young people I've met have been the nicest people ever, while almost every old lady has been very rude. Maybe they feel entitlement (aka like people from Palm Coast?) or it is left over from Soviet times, when everyone was treated like that.