When I see mature adults, say over age 30 drinking those energy drinks like red bull etc. I almost roll my eyes, especially if they are drinking it on a cold morning on the train going to work etc. I know this is a very specific/odd thing to be annoyed by but I see it as immature. Just have a coffee!! I say this as someone who never drinks soft drink. Don't like it. Anyone else have an irrational hatred of something?