My T and I had a miscommunication and I thought my appointment was at 2pm but it was my usual 1pm... T started calling and texting at 1:10 extremely concerned. I have never been late for an appointment (I am always 10+ min early) and never no showed. So... it would be very upsetting for my T as he would be very worried about me. I am not sure how he would handle it the next session... although he might call me and cancel the next session unless I made some contact to confirm I was going to come.