Yep, although this has happened very rarely in reality. Strangely, after I started therapy I started to become sick much less frequently than before. In fact, I have never missed a session due to sickness. I have been sick only one week during these years and then we had phone sessions.

The only reason I have missed is due to work related travelling and yes, then I have payed for missed sessions. However, now when my T is using skype there's much less need to miss because in most cases we can find a way to do skype session instead.