I did this all the time, Having really good intentions when I made the appt. Then thinking no harm done if I don't show up or cancel. This was my thinking...... I was not important, no one would miss me or can't let them see me like this. But then I thought it really wasn't fair to them as their time is important, they could have been seeing someone that really wanted to help them selves. No one can fix me but me! I try to keep appointments now.