Me - websites/apps that don't work when you try to book/buy something. FFS it should not be this fvcking hard (and I swear it is getting worse). If your web site fvcks up more than once when I am trying to book then I am not coming to your cinema/theatre/theme park or buying whatever tat you are selling. You can fvck right off. Being a small business is no excuse.
This is an ever increasing annoyance in the great vuvu panic as more and more places introduce half ar8ed apps to book stuff.