I have a few friends and I know them for more than 4 years. The thing is, I'm feeling real pissed when they are always late and I have to wait for them. From half an hour to one and half hour. Wtf??! I already showed them how piss I am and inconvenient when they delay the plan. Once, they were dragging the time when we are supposed to catch the last train(as if they have more than 24 hours per day), and I returned home late thanks to them. -.- Is it normal im feeling they are taking for granted??, after being friends for so many years. Tell me what I should do to make them know the importance of being punctual, or at least not meeting so damn over time. Help me!