Maybe your PET scan was moved to Friday instead of Wednesday to accommodate someone who was more freaked out about not getting in sooner. Later in my son's Tx, his appointments were often moved up but the kind office people always asked first if it was ok. My son's shaving experience was also memorable. He told me the razor would just move over the hairs which would kind of slide out of the radiated area and deposit themselves in some other place on his face - so he found that using duck tape on his beard area instead of a razor was more efficient. Oh - the wonders of duck tape! Hang in there - Friday will be here soon.