I hate rude ppl. If they turn up late or appt and really apologetic i will do my best to see them, but if they rude and say got appt and don't apologise for being late i won't see them.
If i'm at reception and they go " i got an appt" i say, er yes it was 15 mins ago, and quite often they'll go so, so i reply , well next person due any minute so u will have to rebook sorry or i'll go, so ur l8 and i can't see you depends how rude they r.
One day i was so sick of ppl waltzing l8, blaming traffic, i said to one person "ooh u haven't lived here long then"

(i didn't mean to say it out loud, it just slipped out). She replied yeah 10 years why

, so i just said oh, i'd have thought u would have realised traffic always bad. Implying she should have left earlier, thankfully she was ok about it, i was a rather rude

.