In the year and a half that I have been in therapy she has cancelled twice and both times it has been due to snow. Both cancellations have in fact been this winter. She has been very good about giving plenty of notice when she is going on vacation and in fact took no time off until I was about nine months into my treatment. I am less needy now but very attached so last minute cancellations never sit well regardless of the reason. This is why I really hate the attachment part of therapy.