What would you feel when people asked you for a meeting and did showed up but...

It would depend who the meeting was with, and how late they were, what else I had to do, etc. etc. If it was a friend, they'd surely let you know if they were running late, as would be the courtesy with anybody else, really. If not... I would give them twenty minutes, then assume they're not coming, and go about my other duties, and make another meeting time for them. It happened to me last night, actually, but the friend who didn't turn up is ill, and I never know when he's going to have to go to hospital or whatever. There's no evidence of him having been online... no e-mail, or anything, so I'll just wait until I hear from him before making other arrangements. I understand the position with him and if he doesn't turn up, or contact me, there's usually good reason for it. All sorts of things can happen, for instance, if the person has kids, and the kids are sick or something. If I had nothing else of importance to do, I would entertain them coming late, but tell them I might not always be free when they come late without notification because I do have other things to do.